Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Biden Asks for Patience While Ramping Up Vaccinations VOA News U.S. President Joe Biden on Thursday criticized his predecessor's vaccination program and urged Americans to be patient as he fixed it. "My predecessor -- I'll be very blunt about it -- did not do his job in getting ready for the massive challenge of vaccinating hundreds of millions," Biden said at the National Institutes of Health. "We won't have everything fixed for a while. But we're going to fix it," he added. Biden also announced that the United States had acquired enough vaccines to inoculate 300 million of the 328 million U.S. population by the end of July. .