The meeting between the outgoing president and his successor is an awkward post-election ritual that could be even more disconcerting than usual because of the animosity between the two men.

President Joe Biden will welcome him to the White House on Wednesday for an Oval Office visit that is a traditional part of the peaceful handoff of power, a ritual that Trump himself declined to participate in four years ago.

More than a week after Election Day, control of the House of Representatives has yet to be decided. Out of the 435 seats in Congress’s lower chamber, 12 have yet to be called. How many of these seats — most of them concentrated in slower-counting Western states such as California and Arizona — does each party need for a 218-seat majority?