I think Obama endorses Michelle, every night!
The rest can wait.
Truth is (I'm an old guy) us older fellas hit a wall at some point. A mental wall, too. Usually after the physical one, but still.
For example. I used to be able to hit a pretty decent curve ball on my better moments at one point in my life.
Nowadays. Doubt I could hit a lame change up squarely. Just don't have the vision I used to.
Some folks, when they age, at some point start to get a bit daft.
The alcohol over the years has just killed too many brain cells.
They begin to lose it. Literally.
Their memory goes, their energy wanes, I've heard that some guys can't even get it up any longer.
The horror!
Anyways, Obama watched Biden "operate" for 8 years.
He was given tasks, operations.
His advise was heard.
I've read He advised Obama NOT to do the Bin Laden operation.
If that's the case, his advise was rejected.
Clue #1, maybe.
Pure speculation, based on observation is that Biden has (shall we say) "aged".
Besides, HE is the Past!
If the dems want to win, they need someone new, without scandal and baggage.
Biden is none of that!