Despite campaign promises to adhere to the politics of their districts and states, House and Senate Republicans from a majority of states vote to the left of their constituents, according to a groundbreaking new scorecard on what happens when senators and representatives enter Washington’s “swamp.”

An exhaustive study of over 100,000 House and Senate votes from the last Congress revealed that delegations from 41 states voted more liberally than their districts and states.

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For example, it found that “Republicans in deep red states vote further to the left of their electorates at far higher levels than the Republicans of other states.”

What’s more, the conservative Institute for Legislative Analysis found that leaning liberal also affects Democrats. The group found that swing-state Democrats vote more liberally than lawmakers from left-wing states.

“Swing state Democrats (NV, PA, NC, MI, WI, MN, and GA) vote further to the left of their electorates compared to Democrats in deep blue states (NY and CA),” said the analysis from ILA, which promotes a limited government agenda.

Still, according to the new report just put online for voters to tap, there are conservative standouts who vote to the right of their districts and states. Among the notables are Sen. Mike Lee (R-UT), Rep. Andy Biggs (R-AZ), and Rep. Marjorie Taylor Greene (R-GA).

“While one may expect the most conservative lawmakers in Congress to represent the deepest red states, the data proves this is simply not the case,” said Ryan McGowan, CEO of ILA. “A number of mismatches exist between members of Congress and their constituencies across the nation. Of course, this ultimately impacts legislation, especially at a time like now when Republicans have a razor-thin margin.”

For example, the Senate is considering its vote on the so-called “big, beautiful bill,” passed by a very thin House majority, pushed by President Donald Trump to lock in his tax-cutting and spending agenda.

Fred McGrath, president of ILA, told Secrets today, “When campaigning, nearly every Republican touts how they are fighting for the conservative values of their constituents. Yet once in D.C., their votes typically don’t match their rhetoric, as ILA’s new data proves. While not every Republican may be able to achieve a 100% conservative voting record due to their unique district makeups, every Republican should at least be able to vote at a conservative level aligned with their district. Unfortunately, a significant number of Republicans are falling way short of their promises.”

ILA rated all lawmakers’ votes in the last Congress to come up with its “limited government rating.” It then compared that score to the “Cook Partisan Voting Index,” which ranks the political leanings of states and districts. ILA listed how close or far each member’s voting was from the “district estimate” and finally graded each from A to F.

The result was a black-and-white picture of how much House and Senate members align with the leanings of their constituents, which some voters believe is required.

Several lawmakers vote in a conservative or progressive fashion that closely matches their district. Some 26 House members and four senators voted exactly as their district scored on the Cook Index.

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Some Republicans were wildly more liberal in their voting than their district. For example, ILA scored Rep. Hal Rogers (R-KY) with a subpar limited government rating of 62.9%. His district estimate was 97%, putting him 34 points out of alignment with his district.

On the Senate side, Sen. Shelley Moore Capito (R-WV) was 40 points out of alignment, as was Sen. Mike Rounds (R-SD).