The Fiery Border Showdown: When Markwayne Mullin Grilled Alejandro Mayorkas During a Tense Confirmation The Weight of a Nation: Mullin Confirmed to Homeland Security Amidst Crippling Shutdown Senator Mullin's Market Moves: What's Behind the Trump Ally's Latest Stock Trades? Oklahoma Senator Markwayne Mullin: A Surprise Contender for DHS Secretary?