@cbsnews: In the first Presidential debate, President Biden's voice appeared immediately raspy and never recovered throughout the 90-minute debate against former President Donald Trump — deflating chances of convincing Americans through his debate performance that at age 81 he is healthy enough to serve another four-year term in the White House. Forty-five minutes into the debate, sources familiar with Mr. Biden's debate preparations told CBS News' Nancy Cordes that the president has had a cold for the past few days. A top official said the president was examined by a doctor at Camp David, who confirmed the cold. The president tested negative for COVID, they said. #politics #debate #biden