Most Conservative U.S. House Members of 2023

The top-ranked members of the U.S. House of Representatives by 2023 CMA scorecard score, based on substantive votes tracked by Competitive Markets Action.

See the methodology page for how scores are calculated.

Rank	Lawmaker	Party / State / District	2023 Score
1	Rep. Alex Mooney	R-WV-2	100%
2	Rep. Matt Rosendale	R-MT-2	88%
3	Rep. Marjorie Greene	R-GA-14	88%
4	Rep. Byron Donalds	R-FL-19	88%
5	Rep. Andy Biggs	R-AZ-5	88%
6	Rep. Matt Gaetz	R-FL-1	88%
7	Rep. Jefferson Van Drew	R-NJ-2	88%
8	Rep. Robert Good	R-VA-5	88%
9	Rep. Tim Burchett	R-TN-2	88%
10	Rep. Christopher Smith	R-NJ-4	75%
11	Rep. Michael Lawler	R-NY-17	75%
12	Rep. Carol Miller	R-WV-1	75%
13	Rep. Mike Garcia	R-CA-25	63%
14	Rep. Thomas Massie	R-KY-4	63%
15	Rep. Vern Buchanan	R-FL-16	63%
16	Rep. Young Kim	R-CA-40	63%
17	Rep. Andrew Garbarino	R-NY-2	63%
18	Rep. Buddy Carter	R-GA-1	63%
19	Rep. Michael Waltz	R-FL-6	63%
20	Rep. Victoria Spartz	R-IN-5	63%
21	Rep. Brian Fitzpatrick	R-PA-1	63%
22	Rep. David Valadao	R-CA-22	63%
23	Rep. Lance Gooden	R-TX-5	63%
24	Rep. Thomas Kean	R-NJ-7	63%
25	Rep. Greg Casar	D-TX-35	56%
26	Rep. Harriet Hageman	R-WY-At-Large	50%
27	Rep. Tom McClintock	R-CA-5	50%
28	Rep. Diana Harshbarger	R-TN-1	50%
29	Rep. Scott Perry	R-PA-10	50%
30	Rep. Jamie Raskin	D-MD-8	50%
31	Rep. Virginia Foxx	R-NC-5	50%
32	Rep. Elijah Crane	R-AZ-2	50%
33	Rep. Chip Roy	R-TX-21	50%
34	Rep. Andrew Ogles	R-TN-5	50%
35	Rep. Earl Blumenauer	D-OR-3	50%
36	Rep. Jared Huffman	D-CA-2	50%
37	Rep. Mike Collins	R-GA-10	50%
38	Rep. Roger Williams	R-TX-25	50%
39	Rep. George Santos	R-NY-3	50%
40	Rep. Lloyd Doggett	D-TX-37	50%
41	Rep. Lauren Boebert	R-CO-4	50%
42	Rep. Summer Lee	D-PA-12	50%
43	Rep. Chellie Pingree	D-ME-1	44%
44	Rep. Jeffrey Duncan	R-SC-3	38%
45	Rep. Michael Burgess	R-TX-26	38%
46	Rep. Ilhan Omar	D-MN-5	38%
47	Rep. Tom Tiffany	R-WI-7	38%
48	Rep. Tony Gonzales	R-TX-34	38%
49	Rep. Josh Brecheen	R-OK-2	38%
50	Rep. Drew Ferguson	R-GA-3	38%