tonight, breaking news -- the war of words escalating as joe biden goes after president trump and what he allegedly said about fallen u.s. troops. the president emphatically denying the damaging report, claiming he made insulting comments about fallen american troops, allegedly calling them, quote, suckers and losers. his rival joe biden seizing on the report, citing his own son's service and saying, if true, trump is not fit to be commander in chief. also developing tonight, the antifa activist takedown. portland on edge after u.s. marshals shot and killed an antifa demonstrator wanted for murder. authorities say he was armed and trying to flee. just an hour after saying in an interview the shooting was justified, that he was protecting a friend.