How toHistory

Research voting history

Bills and past votes are a different job from a short biography.

1
Best forThe official record
Best if
You need the official congressional record
Congress.gov
Library of Congress. The source of truth.
Open Congress.gov
2
Best forCongress in plain English
Best if
You want Congress explained in plain English
GovTrack
Bills, votes, and member pages. Unofficial. Congress.gov sits under it.
Open GovTrack
3
Best forState legislatures
Best if
The vote is in a state legislature
OpenStates
State bills and legislators. LegiScan is a close cousin.
Open OpenStates
4
Best forDirect engagement
Best if
You have the vote and now want to contact the member
Power Players
Not a list of every past vote. Use it after you already know how they voted and want to reach them.
Open Power Players

See the legislative-history comparison

Open Congress.gov Open GovTrack Open OpenStates Open Power Players

Last updated September 23, 2026