NEW: Austin Democrat Lloyd Doggett becomes the first sitting member of Congress to call for Biden to drop out of the presidential race (via Matthew Choi, Texas Tribune)
Probably not, though I think the "and how that did turn out?" retorts miss the mark. LBJ genuinely was in declining health (he only outlived the next term by two days) but also, his approval rating was 36%. He was not on track to win. And we forget it, but Humphrey came close in spite of it all!
For all the Dems in disarray chaos we remember 1968 as, and that was all very true, it's reasonably likely that Humphrey actually came closer to beating Nixon than LBJ would have if he'd stayed in the race. At least, it's far from a sure thing the opposite is true.
