>> some accused dhs of not enforcing our nation's laws. this could not be further from the truth. there is nothing i take more seriously than our responsibility to uphold the law. the majority of all migrants encountered at the southwest border have been removed, returned, or expelled. paul: that was alejandra mayorkas defending the biden administration's record on border security and blamed her a broken immigration system for a record surge of migrants. mayorkas's trip came as are public and lawmakers launched impeachment proceedings against the secretary with the security committee holding its first hearing on wednesday.