Questions about Ken Buck
Former Representative for Colorado’s 4th District, 2015–2024 · Republican · from roll-call votes in the 118th Congress
Ken Buck served until Mar 22, 2024. These answers use the 118th Congress, the Congress he served in, and he is no longer in current rankings.
How often does Ken Buck vote with his party?
Ken Buck voted with Republicans on 89% of party-line votes in the 118th Congress (House median 97%), as of Nov 4, 2026.
| Party-line votes cast | 557 |
|---|---|
| With Republicans | 493 (89%) |
| Against Republicans | 64 |
| House median | 97% |
| House Republicans, median | 95% |
Source: Voteview roll calls (UCLA) · How we measure · Who breaks with party most · Updated Nov 4, 2026
How bipartisan is Ken Buck?
Ken Buck voted the same way as Democrats on 16% of shared contested votes in the 118th Congress (House median 16%), tied for 226th most of 442 House members, as of Nov 4, 2026.
| Contested votes cast | 643 |
|---|---|
| Same vote as Democrats | 16% |
| House median | 16% |
| Rank in the chamber | tied for 226th of 442 |
Source: Voteview roll calls (UCLA) · How we measure · Updated Nov 4, 2026
Which members vote most like Ken Buck?
Matthew M. Rosendale, Sr. voted the same way as Ken Buck most often: 88% of 641 shared contested votes in the 118th Congress (median for two House members of the same party 92%), as of Nov 4, 2026.
Median for two House members of the same party: 92%; of different parties: 15%.
| Member | Same vote |
|---|---|
| RMatthew M. Rosendale, Sr. | 88% |
| RAndy Biggs | 88% |
| RJosh Brecheen | 88% |
| RTom McClintock | 88% |
| RAndrew S. Clyde | 88% |
| DJared F. Golden Closest of the Democrats | 32% |
Source: Voteview roll calls (UCLA) · How we measure · Updated Nov 4, 2026