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Congressional Spotlight

SNAPSHOT DATA · 119TH CONGRESS · UPDATED 3/1/2026

Most Loyal

HIGHEST PARTY-LINE VOTING %

1
GOPJohn Thune
SD · Senate
97.8%LOYALTY
2
DEMCory Booker
NJ · Senate
97.1%LOYALTY
3
DEMElizabeth Warren
MA · Senate
96.9%LOYALTY
4
DEMNanette Barragán
CA · House
96.8%LOYALTY
5
GOPTed Cruz
TX · Senate
96.5%LOYALTY

Most Independent

MOST LIKELY TO CROSS PARTY LINES

1
INDKyrsten Sinema
AZ · Senate
65.3%LOYALTY
2
GOPSusan Collins
ME · Senate
68.4%LOYALTY
3
GOPBrian Fitzpatrick
PA · House
69.7%LOYALTY
4
GOPLisa Murkowski
AK · Senate
72.1%LOYALTY
5
DEMJoe Manchin
WV · Senate
74.6%LOYALTY

Chamber Breakdown in Dataset

13 DEM13 GOP2 IND28 MEMBERS TRACKED
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