The Senate voted Monday to confirm Markwayne Mullin to lead the Department of Homeland Security as the shutdown of the sprawling agency dragged into its sixth week with no end in sight. The vote to confirm Mullin, a Republican senator from Oklahoma, as the head of DHS was 54-45, with Sens. John Fetterman, D-Pa., and Martin Heinrich, D-N.M., supporting his confirmation. Sen. Rand Paul, R-Ky., the chairman of the panel overseeing DHS, voted against Mullin on Monday after he clashed with him at his hearing last week and questioned whether a man with “anger issues” could be trusted to set...