 job. But Democrats remain panicked, especially after seeing the early post-debate poll numbers. Nearly three-quarters of all registered voters in a CBS News poll don't think Biden has the mental and cognitive health to be president. And a USA Today poll shows nearly half of registered Democrats don't think the president should be running. Greg Clogston, Washington. Federal Reserve Chairman Jerome Powell says while inflation in the U.S. is slowing again after higher readings early this year, much more evidence would be needed.