The president’s choice of Senator Markwayne Mullin of Oklahoma to replace her at the Department of Homeland Security could trigger a cascade of aspirants for his seat.

But behind the theatrical, sequined stage persona of The Muffled Siren is singer, songwriter, and multi-instrumentalist Gavin ...

President Trump's plan to nominate U.S. Sen. Markwayne Mullin of Oklahoma as Homeland Security secretary will leave an unexpected Senate vacancy in deep-red Oklahoma.

Oklahoma Sen. Markwayne Mullin has six children with his wife, Christie Mullin ...