re: #62 lawhawk

Since when the heck does a highly successful incumbent president decide not to run again?

It doesn’t happen.

LBJ was intent on running again, but his declining health (massive heart attacks) and his disastrous Vietnam policies meant that he didn’t run for reelection.

Disastrous incumbents run again - see Trump, GHWB, GWB, Ford, etc.

But somehow sports metrics junkie who thinks he has deep political insights because he aggregated polling data thinks Biden shouldn’t run again because of his age?

FTS.

Hell, the GOP nominated and ran Herbert Fucking Hoover for reelection in 1932: and he was the the 20th Century’s archetype of the “disastrous incumbent”. None of your other examples even come close….