Democrats start moving to Harris as Biden digs in | National-politics [Video]

(CNN) — Amid the ongoing fallout from Joe Biden’s debate performance, talk in many top Democratic circles has already moved to who Kamala Harris’ running mate would be.

That’s how certain a widening group of leading party officials, operatives and donors are that the president’s slow start to salvage his campaign just won’t work, with several close allies skeptical that he is up to the reelection campaign he has pledged to stay in, based on CNN’s conversations with two dozen Democratic politicians and operatives.