Photo of Mark Lapka
R South Dakota Senate · District 23 On the 2026 ballot

Sen. Mark Lapka

Compare
Total votes
710
all sessions
Attendance
94%
40 missed
Lower than 92% of chamber peers
With party
87%
of cast votes
Near the chamber average
Bipartisan score
8%
crosses aisle rarely
Near the chamber average
Sponsored
15
bills & resolutions
Lower than 95% of chamber peers
Committees
2
assignments
Co-sponsorship network

Legislative network

Legislators build coalitions through co-sponsorship. These are the 10 lawmakers Sen. Lapka 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 Carl Perry
Closest allies

Ranked by bills co-sponsored together across all sessions.

Explore the full network

See Sen. Lapka's co-sponsorship relationships as an interactive graph. Filter by topic, session, or party to trace coalitions and identify the brokers between them.

View network graph