U.S. Senate voting data (1989-2013)
This is raw data from GovTrack showing every vote made by every U.S. Senator from 1989 through 2013.
Some Python code to read the data:
vote_data_by_year = json.loads(open("congress-vote-data.json").read())
for year in range(1989, 2014):
vote_data_year = vote_data_by_year["year"][str(year)]
# do something with the data