 And we need your support. President Biden made an unexpected exit from the campaign trail. CBS's Weijia Jiang from Las Vegas. The president's doctor says he had a runny nose, a cough, and he just wasn't feeling well. So even though he does not have a fever, he took a COVID test and tested positive. While he self-isolates at his home in Delaware, more top Democrats are urging Mr. Biden to quit the race. Warning of big losses in November.