Most Americans understand by now that President Joe Biden is not well in the brain. Just 28 percent of respondents in a recent ABC News poll said the 81-year-old Biden had "the mental sharpness it takes to effectively serve as president."

What most Americans might not realize is that Biden's cognitive decline appears to have spread to members of the White House staff. The president's top press officials, Karine Jean-Pierre and John Kirby, have exhibited symptoms that are alarmingly similar to Biden's. The same is true of Vice President Kamala Harris and national security adviser Jake Sullivan.

The fish is rotting from the head.