Sen. Rand Paul (R-Ky.) opened Sen. Markwayne Mullin's confirmation hearing with a remarkable challenge, daring the Homeland Security secretary nominee to "tell me to my face" why Paul deserved an assault that left him with broken ribs.
Why it matters: Mullin's hearing got off to a rocky start — and Paul said afterwards that he would vote against reporting Mullin's nomination out of the Homeland Security and Governmental Affairs Committee, which he chairs.
