Mary Miller
Republican
IL
Representative, 15th District
Next Election: 2026
Mary Miller is a Republican U.S. Representative for Illinois's 15th Congressional District. Miller first took office in Congress in 2021. In the 119th Congress, Miller has voted in 96% of roll-call votes on bills. Across the passage and amendment votes VoteSee tracks, Miller has voted with the Republican majority 85.3% of the time. Miller's overall VoteSee report card grade is D.
Miller's latest recorded votes: Nay on Retire through Ownership Act (Sep 16, 2026); Yea on Water Resources Development Act of 2026 (Sep 16, 2026); Yea on Ratepayer Protection Act (Sep 16, 2026). Miller is running for re-election on Nov 3, 2026, against 1 other candidate.
Mary Miller: Voting Record & Political Positions
Mary Miller's Voting Record at a Glance
- Voting attendance: 96.04% — cast 630 of 656 roll-call votes (missed 26).
- Party-line voting: votes with the Republican majority 85.33% of the time (14.67% of votes break from it).
- Legislative effectiveness: sponsored 68 bills and sponsored or cosponsored 1360, 18 of which were enacted into law.
Top Issues Mary Miller Votes On
- Immigration
- Taxation
- Defense Spending
- Abortion
- Climate Change
- Health Insurance
How Mary Miller Voted on Recent Bills
- Nay on “Retire through Ownership Act” (2026-09-16) — Passed
- Yea on “Water Resources Development Act of 2026” (2026-09-16) — Passed
- Yea on “Ratepayer Protection Act” (2026-09-16) — Passed
- Yea on “Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule issued by the Environmental Protection Agency relating to the "California State Nonroad Engine Pollution Control Standards; Commercial Harbor Craft Regulations; Notice of Decision".” (2026-09-16) — Passed
- Yea on “Preventing Rip-offs and Obtaining Oversight of Funds Act” (2026-09-16) — Passed
- Yea on “National Fraud Enforcement Division Act of 2026” (2026-09-16) — Passed
- Yea on “Lindsey O. Graham Sanctioning Russia and Iran Act of 2026” (2026-09-16) — Passed
- Yea on “Whistleblower Protection Act of 2025” (2026-09-15) — Passed
When Mary Miller Broke With the Republican Party
Mary Miller has voted against the Republican majority on about 14.7% of the passage and amendment votes VoteSee tracks. Recent examples since 2025:
- Voted Nay on “Retire through Ownership Act” (2026-09-16) while most Republicans voted Yea — Passed.
- Voted Nay on “Tax Relief for Fraud Victims Act” (2026-09-15) while most Republicans voted Yea — Passed.
- Voted Nay on “Diesel Emissions Reduction Act of 2025” (2026-09-15) while most Republicans voted Yea — Passed.
- Voted Nay on “Local Communities & Bird Habitat Stewardship Act of 2026” (2026-09-14) while most Republicans voted Yea — Passed.
- Voted Nay on “National Wildlife Refuge System Invasive Species Strike Team Act of 2025” (2026-09-14) while most Republicans voted Yea — Passed.