Today, President Biden announced steps that will help meet the goal of administering 100 million shots in 100 days and ramp up vaccine supply as fast as possible. As a result of these actions, the federal government will have enough vaccine supply for the entire U.S. population by the end of the summer.
The announcement can be obtained at https://www.whitehouse.gov/briefing-room/statements-releases/2021/01/26/fact-sheet-president-biden-announces-new-steps-to-boost-vaccine-supply-and-increase-transparency-for-states-tribes-and-territories/.