Election 2020 live updates: Biden to deliver health-care speech as Trump blocks cooperation with transition

The Trump White House instructed senior government leaders on Monday to block cooperation with Biden’s transition team, escalating a standoff that threatens to impede the transfer of power and prompting the Biden team to consider legal action.

Officials at agencies across the government who had prepared briefing books and carved out office space for the incoming Biden team to use as soon as this week were told instead that the transition would not be recognized until the Democrat’s election was confirmed by the General Services Administration, the low-profile agency that officially starts the transition.