Rand Paul questions Mullin on assault, dueling

In a heated moment between Senators Rand Paul and Markwayne Mullin, during Mullin's confirmation hearing for Department of Homeland Security to replace Kristi Noem, Paul grilled Mullin about his past comments about an assault involving Paul, his temperament, and his potential support of dueling which has taken place between "consenting adults" including a famous episode in Congress with Charles Sumner.