Biden’s Age Wasn’t a Cover-Up. It Was Observable Fact. - The Atlantic:

The overriding objective of any White House is to make the principal look as good as possible. This is done through basic flackery, gobbledygook, selective disclosure, and rampant omission. We should not expect aides or congressional allies to run out and announce to the nation that the president—any president—seemed really out to lunch at his economic briefing, or was hurling ketchup against the wall, or was messing around with an intern.

You guys, it’s totally normal to cover up a president’s cognitive decline. But also, there was no cover up because Biden’s decline was observable.