Hern launches Senate bid for Mullin’s Oklahoma seat

Rep. Kevin Hern (R-Okla.) on Wednesday announced his bid for U.S. Senate in Oklahoma, running to replace Sen. Markwayne Mullin (R), who was tapped last week to lead the Department of Homeland Security (DHS). Hern, a wealthy businessman, is the first candidate to formally enter the GOP primary to succeed Mullin, whose seat was already up for…