How powerful is the Israel lobby?

Measured by reported federal lobbying, the American Israel Public Affairs Committee (AIPAC) does not rank among the largest lobbies in the United States. It reported $3,757,105 in lobbying income for 2025 on the Senate’s Lobbying Disclosure Act register, about 28% of the $13.5 million reported by the twentieth and last client in OpenSecrets’ 2025 table of the largest lobbying clients. The image of outsized weight that the phrase “Israel lobby” carries rests on larger sums in other channels. United Democracy Project, the super PAC affiliated with AIPAC, reported $37,860,200 in independent expenditures in the 2024 cycle on OpenSecrets’ tabulation of Federal Election Commission filings, and the House passed the 2021 Iron Dome supplemental by 420 votes to 9.

Key Findings

• AIPAC reported $3,757,105 in lobbying income for calendar 2025 on four quarterly LD-2 reports (United States Senate, Office of Public Records, 2026). That is about 28% of the $13.5 million reported by the twentieth-ranked client in OpenSecrets’ 2025 table (OpenSecrets, 2026).
• United Democracy Project reported $37,860,200 in independent expenditures in the 2024 cycle (OpenSecrets, 2025, United Democracy Project). AIPAC’s connected PAC gave $3,037,900 directly to 367 federal candidates in the same cycle (OpenSecrets, 2025, AIPAC PAC). These are separate channels under separate statutes and are not summed.
• AIPAC’s reported lobbying income rose about 36% between 2021 and 2025, from $2,757,247 to $3,757,105, on the Institute’s arithmetic from the Senate register (United States Senate, Office of Public Records, 2026).
• The House voted 226 to 196 for Israel security assistance paired with an IRS funding rescission in November 2023. It voted 366 to 58 for the same assistance without the offset in April 2024 (United States Congress, 2021 to 2024).
• Gallup’s February 2025 reading put sympathy with the Israelis at 46% of US adults, the lowest in 25 years of the series. Sympathy with the Palestinians stood at 33% (Gallup, 2010 to 2025).

Where does AIPAC’s lobbying rank against America’s largest lobbies?

AIPAC reported $3,757,105 in lobbying income for calendar 2025 on four quarterly LD-2 reports filed with the Senate Office of Public Records (United States Senate, Office of Public Records, 2026).

OpenSecrets’ ranked table of the 20 largest lobbying clients for 2025 ends at $13.5 million. AIPAC’s total therefore sits outside the published field, at about 28% of the twentieth entry.

The four quarterly reports run $963,135, $880,060, $940,000 and $973,910, and OpenSecrets’ AIPAC client profile reproduces each one to the dollar (OpenSecrets, 2026). The US Chamber of Commerce leads the same table at $72.2 million, roughly 19 times AIPAC’s total. The table spans health, technology and defense. AARP reported $20.9 million, about 5.6 times AIPAC’s figure, and the Pharmaceutical Research and Manufacturers of America reported $38.2 million, about 10 times. Lockheed Martin reported $15.7 million. OpenSecrets publishes 20 rows and no more, so AIPAC’s exact position below them does not appear on the page.

The amount is filed as income. Line 12 of the LD-2, headed “12. Lobbying”, reads “INCOME relating to lobbying activities for this reporting period was:” and carries $973,910.00 on the fourth-quarter report. Line 13 collects an organization’s lobbying “EXPENSE” and is entirely blank on that report. The form instructs, “YOU MUST complete either Line 12 or Line 13.” AIPAC lists itself as its own client: item 7 carries the “Self” checkbox beside the name American Israel Public Affairs Committee.

The accurate description of the 2025 record is therefore that AIPAC reported $3,757,105 in lobbying income and no lobbying expense on line 13. Each LD-2 is a self-declared good-faith estimate certified by the filer, and the register posts it without audit. The register records what was filed. It holds no measure of access or effect.

Who calls the Israel lobby among the most powerful, and since when?

John Mearsheimer and Stephen Walt gave the claim its best-known form in March 2006, in a London Review of Books essay titled “The Israel Lobby” and a longer Harvard Kennedy School working paper, “The Israel Lobby and U.S. Foreign Policy” (Mearsheimer and Walt, 2006). The essay states that “the thrust of US policy in the region derives almost entirely from domestic politics, and especially the activities of the ‘Israel Lobby’.”

Mearsheimer and Walt build the argument from case histories of policy decisions. It is interpretive scholarship, and the essay publishes no measured rate of influence against which a lobbying total or a vote count could be set. The working paper and the essay appeared together, and both remain the reference points for the phrase two decades later.

It is often said that the lobby’s reach runs through Congress. Track AIPAC, an advocacy project whose stated purpose is tracking AIPAC’s political influence, puts a number on that view in its 2025 count, built on OpenSecrets data. On that count, 80 current members of Congress, which the tracker gives as 15%, have AIPAC as their all-time top contributor (Track AIPAC, 2025). That is the tracker’s own count on its own criteria. It measures contributions received, not votes cast.

The claim, then, has named holders and a specific mechanism, and on that mechanism the record points the same way. AIPAC-linked committees file far larger sums in federal elections than AIPAC reports in lobbying income, and the following sections set those filings out channel by channel. The base rate runs the other way on the measure the word “lobby” most literally denotes. On federal lobbying income, AIPAC’s $3,757,105 for 2025 falls below every client in a ranked field whose twentieth member reported $13.5 million (OpenSecrets, 2026).

The two readings are not in conflict. One concerns registered lobbying under the Lobbying Disclosure Act of 1995. The other concerns campaign finance under federal election law, a body of statute with its own filers and its own disclosure forms. A claim about power can be well supported on one register and modest on the other.

Where does the larger share of AIPAC-linked money actually go?

United Democracy Project, the super PAC affiliated with AIPAC, reported $37,860,200 in independent expenditures for the 2024 cycle, on OpenSecrets’ tabulation of Federal Election Commission filings (OpenSecrets, 2025, United Democracy Project). That is about six times the $6,384,153 AIPAC reported in lobbying income across 2023 and 2024 combined, the two calendar years of the same cycle.

The directional lines in the same tabulation show where the money pointed: $14,067,863 supporting Democrats, $20,786,780 opposing Democrats, $3,043,662 opposing Republicans and $0 supporting Republicans. Those four lines add to $37,898,305, which is $38,105 above the cycle total the same tabulation reports. The split and the total are therefore two readings of the record, not a decomposition of one into the other. More than $14.6 million went into a single House race, New York’s 16th District in 2024. That one race exceeds AIPAC’s entire 2025 lobbying income nearly fourfold.

AIPAC’s connected PAC gave $3,037,900 directly to federal candidates in the same cycle (OpenSecrets, 2025, AIPAC PAC). United Democracy Project’s independent expenditures ran about 12 times that amount.

The three channels sit under three different legal regimes, and none of them is a subtotal of another. Lobbying income is filed with the Senate under the Lobbying Disclosure Act. Direct contributions are capped at $5,000 per candidate per election for a multicandidate committee under 52 U.S.C. 30116 (United States Code, 52 U.S.C. 30116). Independent expenditures are, by the statutory definition that permits them, uncoordinated with any campaign: money spent about a race rather than given to a candidate. Adding the three into one figure would merge filings by three different committees under three different statutes.

The filings record direction and amount. They do not record whether a dollar changed an outcome. What they establish is that the largest AIPAC-linked figures on the public record are election figures, and that a ranking by lobbying and a ranking by election spending will place the same organization in very different positions.

How many candidates in both parties did AIPAC’s PAC fund in 2024?

AIPAC’s connected PAC gave to 367 federal candidates in the 2023 to 2024 cycle, on OpenSecrets’ tabulation of FEC filings (OpenSecrets, 2025, AIPAC PAC).

The PAC gave $3,037,900 in total to those candidates, 347 running for the House and 20 for the Senate, on the same OpenSecrets tabulation of FEC filings (OpenSecrets, 2025, AIPAC PAC).

The recipients are candidates, including challengers and open-seat contenders, so the figure is a count of campaigns funded rather than of sitting members.

The money crossed party lines unevenly. Republicans received 63.02% of the dollars and Democrats 36.62%, two shares that together account for 99.64% of the total in the tabulation. Spread across 367 candidates, the total averages about $8,278 per candidate on the Institute’s arithmetic. The largest amount any single candidate received was $20,000.

The size of each gift is fixed by statute. A multicandidate committee may give no more than $5,000 per candidate per election under 52 U.S.C. 30116 (United States Code, 52 U.S.C. 30116). Primaries, runoffs and general elections count as separate elections, which is how a single candidate’s total can reach a multiple of the per-election cap. The direct-contribution channel is therefore wide by design and shallow by law.

Set against the independent-expenditure channel, the contrast is one of concentration. United Democracy Project put more than $14.6 million into one House race in 2024 (OpenSecrets, 2025, United Democracy Project). That is about 730 times the largest single total the PAC gave any candidate. One channel spreads small sums across hundreds of campaigns in both parties. The other concentrates large sums in a handful of contests, and it is legally barred from coordinating with any of them.

This breadth is the measurable form of “leverage over Congress”: a count of campaigns that took money, and a statutory ceiling on each gift. The same tabulation does not record what any recipient did once in office. Recorded votes are a separate public record, taken up below. The candidate count also differs in kind from Track AIPAC’s figure of 80 sitting members with AIPAC as their all-time top contributor, which spans every cycle a member has run in rather than one.

Has AIPAC’s reported lobbying grown over the past five years?

AIPAC’s reported lobbying income rose from $2,757,247 in 2021 to $3,757,105 in 2025 on the Senate register, an increase of about 36% over the 2021 base on the Institute’s arithmetic (United States Senate, Office of Public Records, 2026). Each year was filed as four quarterly LD-2 reports under the same registrant record.

The series did not rise in a straight line. Income dipped to $2,723,081 in 2022, about 1.2% below 2021, then rose each year after: $3,059,885 in 2023, $3,324,268 in 2024 and $3,757,105 in 2025. The step from 2024 to 2025 was about 13%. Every figure is reported income and a self-declared good-faith estimate, posted as filed and not audited by the Senate.

Across the five years, AIPAC reported $15,621,586 in lobbying income in total. That five-year sum is about 22% of the $72.2 million the US Chamber of Commerce reported in 2025 alone (OpenSecrets, 2026). Growth of 36% from a base of $2.76 million still leaves the 2025 total below the $13.5 million threshold of the published top 20.

The growth itself is real on the record. The register shows a steady increase from 2022 onward, and 2025 is the highest year of the five. What the register cannot show is what the additional income bought. It records dollars reported against quarters, not meetings held, provisions changed or votes moved. A trend in disclosed lobbying is a trend in what an organization reports about its own lobbying activity. The questions of access and effect sit outside the form.

For a fuller account of the four disclosure regimes that touch AIPAC and what each one captures, see the Institute’s report on AIPAC’s four registers.

Which organizations does the label ‘Israel lobby’ actually cover?

Mearsheimer and Walt’s 2006 essay defined “the Lobby” as “the loose coalition of individuals and organisations who actively work to steer US foreign policy in a pro-Israel direction”, a definition that names no member (Mearsheimer and Walt, 2006). The nearest data series, OpenSecrets’ “Pro-Israel” category, is the aggregator’s own classification, neither a government category nor AIPAC’s self-description (OpenSecrets, 2026).

On the Senate register, AIPAC describes itself as a “Lobby focused on U.S. Middle East foreign policy”, registered at 251 H Street NW in Washington under Senate ID 2718-12 (United States Senate, Office of Public Records, 2026). The three channels in the preceding sections belong to three distinct filers: AIPAC as a lobbying registrant, its connected PAC as FEC committee C00797670, and United Democracy Project as FEC committee C00799031. Any figure for “the Israel lobby” depends on which of these, and which other bodies, are grouped together.

A second federal register, kept under the Foreign Agents Registration Act, holds no AIPAC record. The Justice Department’s FARA Unit lists 536 active and 6,540 terminated registrants, searched on 19 August 2026, and none carries the name American Israel Public Affairs Committee or the strings “AIPAC” or “American Israel” (United States Department of Justice, FARA Unit, 2026). The same database does list Israel-linked American bodies. Two are active registrants, set out below. Both are American sections of Israel-based parent organizations, a different structure from AIPAC’s.

The absence of a FARA record is a fact about a government list on a stated date. The Department publishes no determination about AIPAC either way in these records. The statute contains an exemption for agents registered under the Lobbying Disclosure Act, 22 U.S.C. 613(h), whose reach is quoted in the FAQ below. Which disclosure regime applies to an organization is a matter of how it is structured and what it does, and the two regimes collect different information.

What margins do recorded votes on Israel aid show?

The House passed the Iron Dome supplemental by 420 votes to 9, House Roll Call 275 (United States Congress, 2021 to 2024).

The supplemental was for $1 billion, 2 members voted present, and the vote took place on 23 September 2021, on the same House Roll Call 275 (United States Congress, 2021 to 2024).

That is 97.4% of the 431 members recording a position. With only 9 votes against, any group of 100 members of that House, however selected, voted at least 91% yes.

The base rate is the whole chamber. On Roll 275, members whom AIPAC-linked committees later funded voted overwhelmingly for the supplemental, and so did nearly every other member. Any group of 300 members voted at least 97% yes. No source that publishes a share of AIPAC-backed members voting for aid without conditions also publishes the vote set, denominator or method behind it.

The later votes show the margin moving with the legislative package rather than with the assistance. On 2 November 2023 the House passed H.R. 6126, Israel security assistance paired with a rescission of IRS funding, by 226 to 196 (Roll 577), close to party lines. On 20 April 2024 it passed essentially the same assistance without the offset as H.R. 8034, by 366 to 58 (Roll 152). Republicans voted 193 to 21 and Democrats 173 to 37, so 86.3% of the 424 members voting said yes. The difference between the two House votes is 140 yes votes, and the variable between them was the offset. On 23 April 2024 the Senate agreed to H.R. 815, the national security supplemental carrying Israel, Ukraine and Indo-Pacific assistance, by 79 to 18 (Record Vote 154).

Assistance is ordinarily carried inside the annual State and Foreign Operations appropriations act, where a vote on the package is not a vote on any single line. That is why these four recorded votes form the closest thing to a series the record allows. A margin records an outcome, and the same outcome is consistent with lobbying, with strategic and partisan factors, or with both. The roll calls do not separate them. For how members funded by AIPAC-linked committees compare with the rest of the chamber, see the Institute’s report on members of Congress and Israel aid votes.

Has American public sympathy moved with the lobby’s rising spending?

Gallup’s February 2025 World Affairs survey found 46% of US adults sympathizing more with the Israelis than the Palestinians, the lowest reading in 25 years of the trend (Gallup, 2010 to 2025). That reading came in the same year AIPAC reported its highest lobbying income of the 2021 to 2025 series. The two dated records moved in opposite directions.

The 2025 survey interviewed 1,004 adults from 3 to 16 February, with a margin of error of ±4 points. Sympathy with the Palestinians reached 33%, the highest in the series by two points. The decline from the series peak is 17 points: in February 2010, 63% sympathized more with the Israelis (n=1,025, ±4 points), the highest reading since 1991.

The shift is partisan. In February 2023, Democrats sympathized more with the Palestinians (49%) than with the Israelis (38%) for the first time in the trend. By 2025, 75% of Republicans sympathized more with the Israelis and 59% of Democrats more with the Palestinians.

Read beside the other records in this report, the sympathy series and the lobbying series coincided in time and ran in opposite directions. AIPAC’s reported lobbying income rose about 36% from 2021 to 2025 while the Israeli share of sympathy fell to its lowest point. The House vote of 366 to 58 in April 2024 came after Democratic sympathy had already tilted toward the Palestinians. These are dated records set side by side. Neither series measures the other, and no causal link runs between them on this evidence.

The Gallup question is a forced choice between two named parties. It measures relative sympathy, not views on assistance, conditions or lobbying. Gallup’s own methodological work documents that the question’s placement within a survey shifts the shares it produces, so comparisons across readings carry that caveat. For the gap between congressional votes and these opinion readings, see the Institute’s report on congressional support and public opinion.

Methodology and limitations

The evidence comes from four types of source. Primary and official records are the Senate Office of Public Records’ Lobbying Disclosure Act register, read through its filings and public interface on 19 August 2026, with each quarter identified from the register’s filing-period field and the signature date rather than from the print view. They also include the Justice Department’s FARA register, whose complete active and terminated lists were searched on the same date, recorded House and Senate votes at congress.gov, and statutory text from the US Code. The campaign-finance aggregator OpenSecrets supplied the ranked 2025 field of lobbying clients, read on 19 August 2026, and its tabulations of FEC filings for the AIPAC PAC and United Democracy Project, based on FEC data released 6 February 2025. Gallup supplied a long-running national telephone survey. Mearsheimer and Walt supplied interpretive scholarship, used for the claim and the definition, not for any figure.

Several limits bind the findings. OpenSecrets publishes only the top 20 lobbying clients, so AIPAC’s numeric rank is not established. Its sourcing note, which describes the most recent year as covering January to June, applies to 2026 and not to the full-year 2025 table. LD-2 amounts are self-declared estimates, and United Democracy Project’s directional figures exceed its reported total by $38,105. Lobbying, direct contributions and independent expenditures were kept separate throughout. Ratios across them compare channels and are not totals. Percentages and multiples not published by a source are the Institute’s arithmetic and are labelled as such.

No record in the evidence set measures lobbying influence across organizations on a common scale. Every comparison here is of reported dollars, recorded votes or measured opinion. The Gallup series is correlational context, and its question placement affects its shares.

Conclusion

So is the Israel lobby one of the most powerful lobbies in the United States? On the register built to answer questions about lobbying, AIPAC is not among the largest. Its $3,757,105 in reported 2025 lobbying income sits outside a top 20 that ends at $13.5 million.

The fuller portrait has several parts, each with a number behind it. The reported lobbying grew about 36% in five years and is still a fraction of the leading clients. The election channels are where the scale sits: United Democracy Project reported $37,860,200 in independent expenditures for the 2024 cycle, more than $14.6 million of it in a single House race, and the PAC funded 367 candidates in both parties. The recorded votes are near-unanimous when assistance stands alone, 420 to 9 in 2021, and they swing by 140 House votes when an unrelated offset is attached. Public sympathy with the Israelis meanwhile fell to 46% in 2025, its lowest in 25 years of Gallup’s series.

The same organization looks modest by one measure and large by another, and the votes it is most associated with drew near-unanimous margins from members inside and outside its funding lists alike. When a chamber divides 420 to 9 while the public divides 46% to 33%, the sharper question is which of those records the word “powerful” is meant to describe: dollars reported to the Senate, dollars spent around elections, or margins on the House floor. Each answers a different version of the question, and a public argument that moves between them without saying so is weighing three registers as one.

Frequently Asked Questions

How many lobbyists does AIPAC report?

OpenSecrets’ AIPAC profile for 2025 records 10 named lobbyists, with in-house lobbying of $3.76 million and outside firms at $0 (OpenSecrets, 2026). All of AIPAC’s reported lobbying for the year was conducted by its own staff rather than by contracted firms.

How large was all federal lobbying in 2025?

OpenSecrets reports $5.1 billion in federal lobbying for calendar 2025, across 13.7 thousand lobbyists and 88.7 thousand LD-2 reports (OpenSecrets, 2026). AIPAC’s reported total is about 0.07% of that figure, an approximate share because the $5.1 billion is published as a rounded number.

Why are AIPAC’s quarterly amounts not rounded to $10,000?

The LD-2 asks for “a good faith estimate, rounded to the nearest $10,000, of all lobbying related income for the client” (United States Senate, Office of Public Records, 2026). AIPAC’s filings report exact amounts such as $963,135 and $973,910. That is a property of the filings as posted and carries no further finding on its own.

When did AIPAC’s current lobbying registration take effect?

The Senate register gives a client effective date of 1 October 2015 for AIPAC’s registration, and all four 2025 reports were digitally signed by the same filer (United States Senate, Office of Public Records, 2026). Earlier lobbying by the organization falls outside this registrant record.

What does the FARA exemption for registered lobbyists cover?

Under 22 U.S.C. 613(h), FARA registration is not required of “any agent of a person described in section 611(b)(2) of this title or an entity described in section 611(b)(3) of this title if the agent has engaged in lobbying activities and has registered under the Lobbying Disclosure Act of 1995” (United States Code, 22 U.S.C. 611 and 613). By its terms it reaches agents of foreign persons and foreign-organized entities, not agents of a foreign government or foreign political party under 611(b)(1).

Can a super PAC coordinate its spending with a candidate?

Independent expenditures are, by the statutory definition that permits them, made without coordination with any candidate or campaign (OpenSecrets, 2025, United Democracy Project). That is the legal line separating them from direct contributions, which are capped at $5,000 per candidate per election under 52 U.S.C. 30116.

Do Americans support a Palestinian state?

Gallup’s 2025 reading found 55% of US adults in favor of establishing an independent Palestinian state, in line with its readings since 2020 (Gallup, 2010 to 2025). The question is asked separately from the forced-choice sympathies item and measures a policy preference rather than relative sympathy.

Does Gallup’s sympathies question ask about US aid to Israel?

No: it asks only whether sympathies lie more with the Israelis or the Palestinians (Gallup, 2010 to 2025). Support for aid, conditions on aid or lobbying is not measured by that item, and Gallup has documented that the question’s position within a survey affects the shares it produces.

Sources

• Gallup, 2010 to 2025. Middle East sympathies trend series, World Affairs survey, with readings from the February 2010, 2023 and 2025 releases and Gallup’s 2018 methodology note on question placement. Gallup. https://news.gallup.com/poll/1639. Named survey organization.
• Mearsheimer, John J., and Stephen M. Walt, 2006. The Israel Lobby and U.S. Foreign Policy. Harvard Kennedy School working paper; essay version “The Israel Lobby”, London Review of Books, vol. 28, no. 6. https://www.hks.harvard.edu/publications/israel-lobby-and-us-foreign-policy. Working paper and essay (interpretive scholarship).
• OpenSecrets, 2025. AIPAC PAC contributions to federal candidates, 2023 to 2024 cycle, FEC committee C00797670. OpenSecrets. https://www.opensecrets.org/political-action-committees-pacs/american-israel-public-affairs-cmte/C00797670/candidate-recipients/2024. Campaign-finance aggregator tabulating FEC filings.
• OpenSecrets, 2025. United Democracy Project independent expenditures, 2024 cycle, FEC committee C00799031. OpenSecrets. https://www.opensecrets.org/outside-spending/detail/2024?cmte=C00799031. Campaign-finance aggregator tabulating FEC filings.
• OpenSecrets, 2026. Top lobbying clients, calendar year 2025, and AIPAC client profile. OpenSecrets. https://www.opensecrets.org/federal-lobbying/top-clients?year=2025. Lobbying aggregator tabulating Senate Office of Public Records filings.
• Track AIPAC, 2025. Count of current members of Congress with AIPAC as all-time top contributor, built on OpenSecrets data. https://www.trackaipac.com/. Advocacy organization.
• United States Code. 22 U.S.C. 611 and 613, Foreign Agents Registration Act definitions and exemptions. Office of the Law Revision Counsel. https://uscode.house.gov/. Official record (statute).
• United States Code. 52 U.S.C. 30116, limitations on contributions and expenditures. Office of the Law Revision Counsel. https://uscode.house.gov/. Official record (statute).
• United States Congress, 2021 to 2024. Recorded votes on Israel security assistance: House Roll Call 275 (117th Congress), House Roll Calls 577 and 152 and Senate Record Vote 154 (118th Congress). https://www.congress.gov/. Official record (recorded votes).
• United States Department of Justice, FARA Unit, 2026. Active and terminated registrant lists under the Foreign Agents Registration Act, searched 19 August 2026. https://efile.fara.gov/. Official record.
• United States Senate, Office of Public Records, 2026. Lobbying Disclosure Act register: AIPAC registrant record (Senate ID 2718-12) and LD-2 quarterly reports, 2021 to 2025. https://lda.senate.gov/. Official record (filings as filed).