American Voters Doubt about Biden's Mental Fitness for Presidency

After a shaky performance in the first presidential debate, doubts have arisen in voters' minds. Is Biden truly fit to serve as president, both mentally and physically? CBS News and YouGov conducted a survey after the debate. It showed that 72% of registered voters believe Biden is not mentally fit to serve as president, up from 65% in a pre-debate poll. Similarly, 49% of voters expressed the same opinion about Donald Trump.