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Mike Bost
U.S. Representative, Illinois
352 Cannon House Office Building
Summary
Michael Joseph Bost is an American politician serving as the U.S. representative for Illinois's 12th congressional district since 2015. Previously, Bost was a member of the Illinois House of Representatives, representing the 115th district from 1995 to 2015. Before entering politics, he was a firefighter. He is a member of the Republican Party.
Source: Wikipedia · as of Aug 21, 2026
Scorecard
The record at a glanceA quick read on how Rep. Bost votes and legislates this Congress. Every figure links to its full record below.
Views on the Issues
See where Rep. Bost stands — alongside Democratic and Republican positions.
Sponsored Legislation
See all 140 →HR 4633
HR 4633 · Introduced Jul 23, 2025 · Government Operations and Politics
Jul 23, 2025: Referred to the House Committee on Oversight and Government Reform.
HR 4585
HR 4585 · Introduced Jul 22, 2025 · Transportation and Public Works
Jul 23, 2025: Referred to the Subcommittee on Highways and Transit.
HRES 1301
HRES 1301 · Introduced May 19, 2026 · Agriculture and Food
May 19, 2026: Referred to the House Committee on Agriculture.
HR 9237
HR 9237 · Introduced Jun 10, 2026 · Armed Forces and National Security
Jul 16, 2026: POSTPONED PROCEEDINGS - Pursuant to clause 1(c) of rule XIX, the Chair announced further proceedings on H.R. 9237 is postponed.
HR 9214
Voting Analytics
Full record →Computed over Rep. Bost's 645 roll-call votes in the 119th Congress, of which 452were party-split (the two parties' majorities on opposite sides). Unanimous votes are excluded so the rates aren't inflated.
98.2%
Votes with the Republican majority
On party-split votes
1.8%
Votes with the other party
The bipartisanship read
1.9%
Missed votes
Chamber median 2.2% · at or below median
Placement on the House's left–right spectrum
More liberalMore conservative
Based on how often Rep. Bost sided with the Republican majority on party-split votes, ranked against all representatives. This is a vote-agreement placement, not an academic ideology score.
Source: Clerk of the U.S. House (roll-call votes) · as of Sep 9, 2025
Legislative Activity
What Rep. Bost has put their name on in the 119th Congress, and across their career. Most bills — from every member — never become law; the enacted count is context, not a grade.
25
Sponsored this Congress
140 all-time
0
Became law this Congress
0% of those sponsored
1,666
Cosponsored, all-time
Signed on to others' bills
140
Bills sponsored, all-time
Source: Congress.gov · as of Aug 21, 2026
Landmark Legislation
Major bills from recent Congresses — outcomes and party vote breakdowns. For Rep. Bost's individual votes, view their full record on Congress.gov.
Inflation Reduction Act
Enacted2022 · H.R. 5376Largest climate investment in U.S. history; allowed Medicare to negotiate drug prices; reduced the federal deficit.
D: 50 yeaR: 0 yeaFinal: 51–50
CHIPS Act
Enacted2022 · H.R. 4346Invested $52 billion in domestic semiconductor manufacturing to reduce dependence on foreign chip supply chains.
D: 47 yeaR: 17 yeaFinal: 64–33