Title and presumption:
"Mamdani’s Polling Lead Takes Major Dip As NYC Mayoral Election Nears"Ain't necessarily so.
HERE are the most recent polling numbers (courtesy of real clear polling):

zombie-mammi seems to holding in the mid-40s.
lil' andy has picked up some votes, now hitting 34%. Looks like he's gained about 5% or so since adams dropped out and endorsed him.
Curtis has slipped a little. Perhaps a small number of his supporters (1-2%?) have switched to cuomo, if that much. He's in to the finish, seems to me if he was going to drop out and endorse cuomo he would have done so by now.
7% of the voters remain "undecided".
Let's be generous to cuomo and guess that the undecideds split and give him an additional 3%.
That's going to push zombie-mammi to about 48%.
cuomo looks like he could end up with 36-38%... at best.
With one week to go, unless something REALLY damaging comes out against z-mammi, he's the next "hizzoner".
Show me where I'm wrong.