Before heading off to his so-called "winter White House" in Palm Beach, Florida, on Friday, President Donald Trump summoned some of his senior staff to the Oval Office and went "ballistic," senior White House sources told ABC News. The president erupted with anger over the latest slew of news reports connecting Russia with the new administration -- specifically the abrupt decision by Attorney General Jeff Sessions to recuse himself from investigations into Russian meddling in the 2016 campaign. Sources said the president felt Sessions' recusal was unnecessary and only served to embolden Trump's political opponents. The attorney general made his...