Thune: Rand Paul, Mullin ‘have some personal history’ they must ‘work through’ Senate Majority Leader John Thune (R-S.D.) says that Senate Homeland Security and Governmental Affairs Committee Chair Rand Paul (R-Ky.) and Sen. Markwayne Mullin (R-Okla.), President Trump’s nominee to serve as secretary of the Department of Homeland Security, “have some personal history” they h...