At this point, no one really doubts he’s well into an unrecoverable cognitive decline. He knows it. His family knows it. The media knows. They all ignored for the very reason Obama said: Biden was the only person who could beat Trump. And by ‘beat’ what they meant was Biden was the only person that could have kept it close enough for the Big Steal to work.
Had the nominee been Sanders, Trump’s margin of victory would have been so great, even the Dems couldn’t manufacture that many fake ballots. So, they looked the other way when Biden frequently sounded like he needed to be in a home EXACTLY how they all looked the other way when Obama pretended he was against homosexual marriage. They were all in on the con.
BTW, even GOPe was in on it. Look through the transcripts of sitting Republican office holders throughout the 2020 campaign, House and Senate. There aren’t many that made Biden’s apparent dementia an issue.
“He knows it.”
If you are really in cognitive decline, you don’t know it. Everyone else knows it, but he thinks he is fine.
This will be a big problem for the Democrats, since he is not going to give up office voluntarily. It will look ugly, and probably ruin their chances in 2022.