Most Conservative U.S. House Members of 2025

The top-ranked members of the U.S. House of Representatives by 2025 ILA scorecard score, based on substantive votes tracked by Institute for Legislative Analysis.

See the methodology page for how scores are calculated.

Rank	Lawmaker	Party / State / District	2025 Score
1	Rep. Chip Roy	R-TX-21	100%
2	Rep. Andy Biggs	R-AZ-5	98%
3	Rep. Eric Burlison	R-MO-7	98%
4	Rep. Elijah Crane	R-AZ-2	98%
5	Rep. Scott Perry	R-PA-10	96%
6	Rep. Paul Gosar	R-AZ-9	96%
7	Rep. Josh Brecheen	R-OK-2	96%
8	Rep. Ralph Norman	R-SC-5	96%
9	Rep. Keith Self	R-TX-3	95%
10	Rep. Tim Burchett	R-TN-2	94%
11	Rep. Michael Cloud	R-TX-27	94%
12	Rep. Thomas Massie	R-KY-4	94%
13	Rep. Andrew Clyde	R-GA-9	94%
14	Rep. Marjorie Taylor Greene	R-GA-14	93%
15	Rep. Greg Steube	R-FL-17	93%
16	Rep. Andrew Ogles	R-TN-5	93%
17	Rep. Lauren Boebert	R-CO-4	93%
18	Rep. Sheri Biggs	R-SC-3	93%
19	Rep. Brandon Gill	R-TX-26	92%
20	Rep. Mary Miller	R-IL-15	92%
21	Rep. Victoria Spartz	R-IN-5	91%
22	Rep. Ben Cline	R-VA-6	91%
23	Rep. Clay Higgins	R-LA-3	90%
24	Rep. Andy Harris	R-MD-1	90%
25	Rep. Tom Tiffany	R-WI-7	90%
26	Rep. Mark Harris	R-NC-8	90%
27	Rep. Byron Donalds	R-FL-19	90%
28	Rep. Wesley Hunt	R-TX-38	90%
29	Rep. Aaron Bean	R-FL-4	90%
30	Rep. Russ Fulcher	R-ID-1	90%
31	Rep. John McGuire	R-VA-5	90%
32	Rep. Pat Harrigan	R-NC-10	89%
33	Rep. Mike Collins	R-GA-10	89%
34	Rep. Bob Onder	R-MO-3	89%
35	Rep. Harriet M. Hageman	R-WY-At-Large	89%
36	Rep. Diana Harshbarger	R-TN-1	88%
37	Rep. Warren Davidson	R-OH-8	88%
38	Rep. Anna Paulina Luna	R-FL-13	88%
39	Rep. Kat Cammack	R-FL-3	88%
40	Rep. Jim Jordan	R-OH-4	88%
41	Rep. Mike Kennedy	R-UT-3	88%
42	Rep. Tom McClintock	R-CA-5	88%
43	Rep. Cory Mills	R-FL-7	88%
44	Rep. Mike Johnson	R-LA-4	87%
45	Rep. Jeff Crank	R-CO-5	87%
46	Rep. Richard McCormick	R-GA-7	87%
47	Rep. Russell Fry	R-SC-7	87%
48	Rep. Ronny Jackson	R-TX-13	87%
49	Rep. John Joyce	R-PA-13	87%
50	Rep. Kevin Hern	R-OK-1	86%