Trump arrives in U.S. facing deadline to act on Mexico tariffs; Trump returns to U.S. after escalating feud with Pelosi en route, calling her "A Disgrace"; House Democrats set more hearings on Mueller report; AG Barr faces two possible contempt votes next week; Nadler privately pushes for impeachment inquiry as democrats set more hearings on Mueller report; Sources: Biden abortion policy flip came after pressure from his staff, direct appeals from prominent supporters; U.S. and Russian warships nearly collide; Kim Jong Un's regime lashes out after pentagon strategy report calls North Korea a "Rogue State" via Knit