Mar.12 -- President Joe Biden offered a Fourth of July goal for the U.S. to begin returning to normal as “light in the darkness” to a weary nation on Thursday, counting on a rapidly expanding supply of coronavirus vaccine to raise American hopes. In his first prime-time address as president, Biden told states he wants all adults in the U.S. made eligible for vaccines by May 1. That vision was already within reach before his announcement, on the first anniversary of lockdowns that paralyzed the world’s largest economy.