States would pay for large chunks of the free college plans from Biden and Sanders, but the coronavirus is sending state finances reeling. Though they don't necessarily doom the plans, the financial struggles of states amid the coronavirus pandemic have become a major obstacle to free college proposals from presidential candidates Bernie Sanders and Joe Biden.
https://www.insidehighered.com/news/2020/04/03/financial-woes-states-threaten-free-college-proposals-biden-and-sanders