Who Thomas R. Carper votes with
Across 1284 divided votes — ones where both sides drew a real bloc. Unanimous votes are excluded: everyone agrees with everyone on those, so counting them would measure attendance rather than agreement.
Most often with
| Member | Party | Agreement |
|---|---|---|
| Jack Reed | D | 99.3% (1272/1281) |
| Mark R. Warner | D | 99.3% (1245/1254) |
| Tammy Duckworth | D | 99.3% (1251/1260) |
| Sheldon Whitehouse | D | 99.2% (1255/1265) |
| Brian Schatz | D | 99.1% (1253/1265) |
| Tina Smith | D | 99.1% (1257/1268) |
| Christopher A. Coons | D | 99.0% (1244/1256) |
| Jeanne Shaheen | D | 99.0% (1211/1223) |
| Kirsten E. Gillibrand | D | 99.0% (1254/1267) |
| Amy Klobuchar | D | 98.9% (1252/1266) |
| Christopher Murphy | D | 98.9% (1252/1266) |
| Richard Blumenthal | D | 98.9% (1257/1271) |
| Richard J. Durbin | D | 98.9% (1236/1250) |
| Michael F. Bennet | D | 98.8% (1252/1267) |
| Gary C. Peters | D | 98.7% (1251/1267) |
| Martin Heinrich | D | 98.7% (1244/1260) |
| Tim Kaine | D | 98.7% (1248/1264) |
| Alex Padilla | D | 98.6% (1239/1257) |
| Ben Ray Luján | D | 98.6% (1205/1222) |
| Maria Cantwell | D | 98.6% (1257/1275) |
Least often with
| Member | Party | Agreement |
|---|---|---|
| Ted Cruz | R | 1.4% (17/1190) |
| Tommy Tuberville | R | 1.5% (19/1229) |
| Marsha Blackburn | R | 1.6% (20/1228) |
| Rick Scott | R | 1.8% (22/1238) |
| Ron Johnson | R | 2.7% (34/1247) |
| Eric Schmitt | R | 2.9% (15/522) |
| Bill Hagerty | R | 2.9% (35/1202) |
| Tom Cotton | R | 3.0% (38/1246) |
| Katie Boyd Britt | R | 3.1% (16/508) |
| Josh Hawley | R | 3.2% (40/1231) |
| James Lankford | R | 3.2% (41/1277) |
| Tim Scott | R | 3.3% (39/1177) |
| John Barrasso | R | 3.4% (39/1147) |
| Roger Marshall | R | 3.6% (44/1237) |
| Mike Lee | R | 3.7% (46/1255) |
| Steve Daines | R | 4.0% (49/1230) |
| Cynthia M. Lummis | R | 4.3% (53/1244) |
| John Boozman | R | 4.7% (60/1277) |
| Rand Paul | R | 4.8% (59/1234) |
| Ted Budd | R | 5.3% (28/528) |
Only members with at least 20 comparable votes are listed. Agreement is not endorsement and not coordination — two members can vote the same way for opposite reasons, and the record almost never says why.