Who is Markwayne Mullin?

Markwayne Mullin | Associated Press

Mullin, who served in the House for years before being elected to the Senate in November 2022, is one of Trump’s closest allies on Capitol Hill and has been a frequent intermediary between the White House and congressional Republicans.

He has often leaned on his longstanding House ties, working with his former colleagues there as the GOP hashed out the party’s sweeping tax and border security law last year.

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