Paul Ryan April 11, 2018 9:58 pm ‘Late Night': Roy Amberson Performs Ditty About Paul Ryan Roy Amberson stops by “Late Night” to perform a little ditty about Paul Ryan’s retirement. US & World Videos 1:40 Democrats say Big Oil misled public for decades about climate change 2:56 Police putting up barricades on UCLA campus after overnight brawl 4:00 Firecrackers thrown at pro-Palestinian encampment during protester clash at UCLA 1:45 NYPD enters Columbia University in riot gear to clear protest 3:40 UCLA promises more police, disciplinary action amid protest