By REBECCA BOONE and DAVID CRARY, Associated Press BOISE, Idaho (AP) — The U.S. coronavirus caseload has reached record heights with more than 83,000 infections reported in a single day, the latest ominous sign of the disease’s grip on the nation, as states from Connecticut to the Rocky Mountain West reel under the surge. The U.S. death toll, meanwhile, has grown to 223,995, according to the COVID-19