
Total votes
1,037
all sessions
Attendance
99%
12 missed
Near the chamber average
With party
96%
of cast votes
Near the chamber average
Bipartisan score
2%
crosses aisle rarely
Near the chamber average
Sponsored
2,139
bills & resolutions
Higher than 94% of chamber peers
Committees
15
assignments
Co-sponsorship network
Legislative network
Legislators build coalitions through co-sponsorship. These are the 10 lawmakers Sen. Van Hollen co-sponsors with most often: a window into their policy partnerships, their coalition within the caucus, and the rare cases where they reach across the aisle.
Top partners
10
Within party
10
Across aisle
0
Strongest tie
Richard Blumenthal
Closest allies
Ranked by bills co-sponsored together across all sessions.
01

Richard Blumenthal
1,179bills together
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02

Cory A. Booker
1,108bills together
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03

Jeff Merkley
1,058bills together
Compare →
04

Alex Padilla
995bills together
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05

Edward J. Markey
981bills together
Compare →
06

Amy Klobuchar
980bills together
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07

Ron Wyden
938bills together
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08

Elizabeth Warren
929bills together
Compare →
09

Richard J. Durbin
900bills together
Compare →
10

Tammy Duckworth
878bills together
Compare →
Explore the full network
See Sen. Van Hollen's co-sponsorship relationships as an interactive graph. Filter by topic, session, or party to trace coalitions and identify the brokers between them.
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