On Thursday, Trump’s newest cabinet member, Markwayne Mullin, the new Secretary of Homeland Security, appeared before the House Appropriations Committee to defend his leadership at DHS after replacing Kristi Noem in March, and to no one’s surprise, proved himself to be learnèd in the Trump School of Deny-Deflect-and-Distract. In one heated exchange, Rep. Rosa DeLauro (D-Conn.) questioned Mullin about the children being separated from their famil…