'Saturday Night Live' lost plenty of fans when it serenaded Hillary Clinton's failed presidential campaign three years ago. The iconic show mourned Clinton's defeat, with Kate McKinnon's Clinton uncorking a cover of Leonard Cohen's 'Hallelujah.' In lieu of flowers, send a cringe-worthy song. Wait ... isn't this a comedy show? They doubled down a few weeks later, singing 'To Sir With Love' to the president they barely mocked, Barack Obama, as his White House tenure expired. We may look back at last night's 'SNL' as even more embarrassing - as well as a sign of things to come. RELATED: How