JAKE TAPPER (HOST): Today, President Trump again labeled the investigation into Putin-directed Russian interference in the 2016 election he won a "hoax." This morning he tweeted, quote, "The Russia hoax continues, now it's ads on Facebook. What the totally biased and dishonest Media coverage in favor of Crooked Hillary?" This comes a day after Facebook said it would turn over to Congress thousands of ads that Russian troll farms allegedly purchased during the 2016 election.