Massachusetts delegation in Congress
| Member | With party | With President | Rank (0–100) |
|---|---|---|---|
| Sen. Edward J. MarkeyDemocrat Massachusetts | 100% | 1% | 5 |
| Sen. Elizabeth WarrenDemocrat Massachusetts | 100% | 1% | 0 |
| Rep. Richard E. NealDemocrat MA-01 | 99% | 9% | 19 |
| Rep. James P. McGovernDemocrat MA-02 | 100% | 4% | 3 |
| Rep. Lori TrahanDemocrat MA-03 | 98% | 9% | 19 |
| Rep. Jake AuchinclossDemocrat MA-04 | 95% | 13% | 40 |
| Rep. Katherine M. ClarkDemocrat MA-05 | 99% | 8% | 9 |
| Rep. Seth MoultonDemocrat MA-06 | 98% | 10% | 38 |
| Rep. Ayanna PressleyDemocrat MA-07 | 100% | 3% | 26 |
| Rep. Stephen F. LynchDemocrat MA-08 | 96% | 14% | 31 |
| Rep. William R. KeatingDemocrat MA-09 | 98% | 12% | 33 |
Rank is the percentile in all of Congress from most liberal (0) to most conservative (100).