President Trump Might Invoke Defense Production Act

The transcript discusses the US government's efforts to prioritize Americans for a US-made vaccine. The president addressed this at a White House event, following reports that the administration declined to purchase additional doses of Pfizer's potential vaccine. The US has already secured 100 million doses from Pfizer, sufficient to vaccinate 50 million people.

What did the administration reportedly turn down?

How many doses of Pfizer's vaccine has the US already ordered?