Who Jon Tester votes with
Across 1262 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 |
|---|---|---|
| Tammy Baldwin | D | 96.2% (1202/1250) |
| Catherine Cortez Masto | D | 96.1% (1201/1250) |
| Michael F. Bennet | D | 96.1% (1197/1245) |
| Richard J. Durbin | D | 96.1% (1180/1228) |
| Ron Wyden | D | 96.1% (1197/1246) |
| Maria Cantwell | D | 96.0% (1203/1253) |
| Alex Padilla | D | 95.9% (1184/1235) |
| Christopher A. Coons | D | 95.9% (1186/1237) |
| Gary C. Peters | D | 95.9% (1194/1245) |
| Ben Ray Luján | D | 95.8% (1149/1200) |
| Chris Van Hollen | D | 95.8% (1170/1221) |
| John W. Hickenlooper | D | 95.8% (1174/1226) |
| Patty Murray | D | 95.8% (1185/1237) |
| Angus S. King, Jr. | I | 95.7% (1193/1246) |
| Christopher Murphy | D | 95.6% (1189/1244) |
| Jeanne Shaheen | D | 95.6% (1151/1204) |
| Martin Heinrich | D | 95.6% (1184/1238) |
| Mazie K. Hirono | D | 95.6% (1202/1257) |
| Elizabeth Warren | D | 95.5% (1198/1255) |
| Kirsten E. Gillibrand | D | 95.5% (1190/1246) |
Least often with
| Member | Party | Agreement |
|---|---|---|
| Tommy Tuberville | R | 5.2% (64/1220) |
| Marsha Blackburn | R | 5.5% (67/1216) |
| Ted Cruz | R | 5.6% (65/1169) |
| James Lankford | R | 5.7% (71/1255) |
| Katie Boyd Britt | R | 6.1% (30/488) |
| Rick Scott | R | 6.2% (75/1217) |
| Tom Cotton | R | 6.4% (79/1225) |
| Ron Johnson | R | 6.9% (85/1225) |
| John Barrasso | R | 6.9% (78/1127) |
| Bill Hagerty | R | 6.9% (83/1204) |
| Tim Scott | R | 7.0% (81/1158) |
| Rand Paul | R | 7.3% (89/1214) |
| John Boozman | R | 7.4% (93/1255) |
| Roger Marshall | R | 7.5% (92/1221) |
| Mike Lee | R | 7.5% (92/1233) |
| Josh Hawley | R | 7.7% (95/1226) |
| Steve Daines | R | 8.1% (99/1218) |
| Cynthia M. Lummis | R | 8.2% (100/1224) |
| Ted Budd | R | 8.3% (42/507) |
| Eric Schmitt | R | 8.7% (44/503) |
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.