Monday, December 4th, 2017: Russia Narrative Unravels - Harvard law professor Alan Dershowitz says there's no case for 'obstruction of justice' against President Trump, as the Russian collusion narrative continues to dissolve. And the Fake News machine collapses, with ABC News having to retract a bombshell report alleging Trump ordered Flynn to collude with Russians BEFORE he was president. Also, the president backs Roy Moore for Alabama senator, as he scores another big win on tax cuts.