CNN's Chris Cuomo struggles to disprove Trump tweet by awkwardly calling his mom live on the air

CNN's Chris Cuomo passed the time during a break of Thursday's impeachment hearing with a MythBusters-style experiment. It did not go well. Thursday's testimony featured a witness, diplomat David Holmes, reiterating to Congress that he overheard President Trump on a phone call with U.S. Ambassador to the European Union Gordon Sondland in July, with Trump speaking so loudly that he could be heard even while not on speakerphone. "I could hear the president's voice through the earpiece of the phone...