Trump's new call for background checks met with skepticism; Trump in 2018 vowed to be "Very strong on background checks"; Trump: McConnell is "totally on board" with background checks; McConnell aide: He didn't say he's on board with anything specific; Trump at odds with GOP as he touts support for background checks; Castro, Yang joins growing number of 2020 Democrats who accuse President Trump of being a white supremacist; At least 10 Democrats running for 2020 call Trump a white nationalist or supremacist; Biden, Harris stop short; Trump on claims he's a white supremacist: "I don't like it"; Trump says "I don't think it helps" to be called a white supremacist despite reports aides believe it helps in 2020; GOP Senator Scott: If I run, 2022 will be my last Senate race; nine GOP lawmakers have already decided not to run in 2020; Mark Sanford mulling run against Trump in GOP Primary; Nine GOP Lawmakers have decided not to run in 2020; 2020 Democrats flock to first caucus state of Iowa to attend state fair and try to win over votes; 2020 Democrats descend on Iowa for state fair; Democrats flock to Iowa State Fair to boost White House bids; U.S. official: North Korea launches more short-range missiles hours after Trump touted "Beautiful" letter from Kim Jong Un; U.S. official: North Korea launches more short-range missiles; Sources: top intelligence officer Dan Coats interrupted meeting to urge his deputy Sue Gordon to resign; CNN: Top intel official interrupted meeting to tell deputy to resign; Trump attacks Baltimore but is he abandoning struggling towns?; Trump slams Baltimore as "Rodent infested," but when it comes to struggling rural towns, Trump is silent via Knit