DAY 463: McCarthy maintains GOP support

<p>After addressing explosive new audio tapes, Rep. Kevin McCarthy received a standing ovation from House Republicans. Despite the public united front, sources tell NBC things got “heated” in the GOP huddle. Meantime, Russia releases a U.S. Marine veteran in a surprise prisoner exchange. And House Democrats say the Trump admin. awarded a $700 million pandemic loan to a trucking company over objections from Defense Department officials. Jackie Alemany, Neal Katyal, Joyce Vance, Alexander Vindman, Robert Gibbs, Geoff Bennett and Alan Rappeport join.</p>