FILE - In this Sept. 17, 2020, file photo, House Majority Whip James Clyburn, of S.C., speaks during a news conference about COVID-19, on Capitol Hill in Washington.
Pelosi will start the Biden era with a narrow majority, 222-211, with a few races still undecided.
Biden's first pick from the House, Rep. Cedric Richmond, D-La., would join the administration quickly once the president-elect is inaugurated Jan. 20, Clyburn said.
Democrats are already deep into political soul-searching after a dismal November outcome for House Democrats.
The danger zone was close enough that House Majority Leader Steny Hoyer warned Biden last month off taking any more Democrats from his ranks.