"Cuomo’s rise is an unalloyed benefit for his state and the nation’s largest city, but it is not an unalloyed benefit for his party."

"To almost any sentient observer, it looks like the Democrats have picked the wrong guy to oppose Trump this fall. But the Democrats have painted themselves into a corner. They can’t simply stride out across the wet paint now that Biden has effectively won the nomination. He won it in open primaries, with settled rules, and there’s no way to change them. Biden won’t offer the party an easy escape. He won’t suddenly renounce the prize he has sought his entire adult life. And even if Uncle Joe woke up with a horse’s head in his bed and backed out, Bernie Sanders would say, 'Hey, I’m next. No cutting in line.' In that unlikely scenario, the Democratic Party would undoubtedly reject the hardline socialist at their convention in Milwaukee, but doing so would enrage his staunch supporters and fracture the party unity necessary to defeat Trump.  So why not nominate Cuomo for vice president and hint that Biden would step aside after one term?... A Biden-Cuomo ticket would be made up of -- gasp -- two older white men. Where is the woman on that ticket? Where is the African American? How exactly did they get pushed aside in a party that is built upon the rock (or is it sand?) of identity politics? Moreover, Biden has actually promised, in public and on tape, that he will select a woman for his running mate...."

From "Cuomo Rising, Biden Wandering" by political scientist Charles Lipson (at Real Clear Politics).

This is a terrible problem for Democrats, but I would give priority to the important work Cuomo needs to keep doing for New York right now. He should not be pulled off the job to do the work of running for President (or Vice President!). Right now, he looks especially good because he is coordinating with the Trump administration. It would be disastrous to confuse that work by making him Trump's official opponent. Getting through this crisis is more important than the presidential election, and even if it weren't, the Democrats are not going to win by putting their party interests above taking care of the immediate problem now. Cuomo is the Governor of New York. He's doing a what seems to be a good job of it, right when that is what is desperately needed. That's more than enough for Cuomo. The fact that Biden is a terrible presidential candidate for this time is just too damned bad.