WASHINGTON (AP) — The White House is planning for "dire" contingencies that could include rationing supplies of vaccines and treatments this fall if Congress doesn't approve more money for fighting COVID-19.

In public comments and private meetings on Capitol Hill, Dr. Ashish Jha, the White House coronavirus coordinator, has painted a dark picture in which the U.S. could be forced to cede many of the advances made against the coronavirus over the last two years and even the most vulnerable could face supply shortages.

Biden administration officials have been warning for weeks that the country h...