Markwayne Mullin Senator, Oklahoma · Republican · no longer serving
Markwayne Mullin, Senator, Oklahoma. Sided with Democrats on 5 of 634 split votes, voted with most Republicans 99.3% of the time, missed 5.5% of votes.
Recent votes with Democrats To strike all earmarks. (Senate, Jan 30, 2026; Motion to Table Agreed to)To eliminate funding for refugee and entrant assistance. (Senate, Jan 30, 2026; Amendment Rejected)S. 2806: A bill to provide for automatic continuing appropriations. (Senate, Sep 29, 2025; Cloture on the Motion to Proceed Rejected)S.Con.Res. 22: A concurrent resolution setting forth the congressional budget for the United States… (Senate, Sep 16, 2025; Motion to Proceed Rejected)To reduce the amount appropriated for the United States Agency for International Development. (Senate, Mar 14, 2025; Amendment Rejected)
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Vote records come from the Office of the Clerk of the U.S. House and the U.S. Senate roll call pages, and every vote links to its official record. The member roster comes from the public-domain congress-legislators project. Bill summaries are from the Congressional Research Service via Congress.gov.
Votes before November 13, 2026 were loaded from the open Yeas & Nays dataset (MIT License), which compiles the same official records. Independents are counted with the party they caucus with.
A member "sided with" the other party when most Democrats and most Republicans in that chamber voted opposite ways and the member voted with the other party's majority. Missed votes and votes of Present do not count.
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