Senate Mainstream Republican
44 members clustered on panel issue scores from roll-call votes — k-means on legislator positions across eight shared topics.
Faction #9What makes this faction distinct
Issue factions are clustered so members share similar panel issue profiles from roll-call votes. The charts below show which issues separate this group from every other faction in Congress.
vs. strongest contrast faction
Compared to House Progressive Left — the faction furthest away on average across shared panel issues.
Senate Mainstream Republican
- Immigration: 13
- Climate & environment: 15
- Crime & justice: 21
House Progressive Left
- Climate & environment: 90
- Immigration: 85
- LGBTQ+ rights: 85
Defining issue leans
Bar length = faction lean. Δ = how far this faction sits from all others on that issue.
All factions at a glance
Solid cells = defining issues for that faction (largest gap vs all others). Blue = progressive lean, red = traditionalist. Blank = issue not in that faction's top profile.
Biggest contrast pair: Senate Mainstream Republican vs House Progressive Left
Map — zoomed to this faction
526 members in 9 issue factions (silhouette 0.54), clustered on combined vote + sponsorship dimension profiles. Compare with All factions →
Members
Senate Mainstream Republican
Defining panel issues
- Immigration — mean 13 (100% coverage)
- Climate & environment — mean 15 (98% coverage)
- Crime & justice — mean 21 (98% coverage)
| Member | State | Chamber |
|---|---|---|
| John Barrasso | WY | Senate |
| Roger F. Wicker | MS | Senate |
| Susan M. Collins | ME | Senate |
| John Cornyn | TX | Senate |
| Mitch McConnell | KY | Senate |
| James E. Risch | ID | Senate |
| Marsha Blackburn | TN | Senate |
| John Boozman | AR | Senate |
| Shelley Moore Capito | WV | Senate |
| Bill Cassidy | LA | Senate |
| Mike Crapo | ID | Senate |
| Chuck Grassley | IA | Senate |
| John Hoeven | ND | Senate |
| James Lankford | OK | Senate |
| Jerry Moran | KS | Senate |
| Lisa Murkowski | AK | Senate |
| Rand Paul | KY | Senate |
| Tim Scott | SC | Senate |
| John Thune | SD | Senate |
| Tom Cotton | AR | Senate |
| Steve Daines | MT | Senate |
| Kevin Cramer | ND | Senate |
| Deb Fischer | NE | Senate |
| Dan Sullivan | AK | Senate |
| Joni Ernst | IA | Senate |
| Mike Rounds | SD | Senate |
| John Kennedy | LA | Senate |
| Jim Banks | IN | Senate |
| Roger Marshall | KS | Senate |
| John R. Curtis | UT | Senate |
| Cindy Hyde-Smith | MS | Senate |
| Josh Hawley | MO | Senate |
| Cynthia M. Lummis | WY | Senate |
| Bill Hagerty | TN | Senate |
| Katie Boyd Britt | AL | Senate |
| Eric Schmitt | MO | Senate |
| Pete Ricketts | NE | Senate |
| Tim Sheehy | MT | Senate |
| Bernie Moreno | OH | Senate |
| David McCormick | PA | Senate |
| James C. Justice | WV | Senate |
| Jon Husted | OH | Senate |
| Ashley Moody | FL | Senate |
| Alan Armstrong | OK | Senate |