 CBS's Jim Axelrod has more on voter reaction to the Biden decision to exit the race. This retired bar owner in Michigan had wanted to see the president drop out ever since the debate. After seeing him, how bad he's been failing health-wise, I think it's a good thing that he did drop out. The latest CBS poll of registered voters overwhelmingly showed most Americans did not think Mr. Biden has the mental and cognitive health to serve as president. I didn't think that was going to happen. It makes sense. From suburban New York City...