BOB MCMANUS: Latest migrant poll should scare the hell out of Democrats.

A new poll says 84% of New Yorkers think the state’s migrant mess is a serious problem.

The remaining 16% are zombied-out addicts living in parks and subway tunnels.

Ha. Just kidding about the zombie part.

But, seriously, if you live in New York and don’t think the state’s ever-swelling army of border-hoppers is a serious problem, then you really — really — haven’t been paying attention.

So no surprise then that a poll Tuesday from the Siena College Research Institute finds not only that New Yorkers are uber-stressed over immigration — but that President Biden has but a single-digit lead over Donald Trump in a hypothetical general-election match-up next year.

Clearly, federal fecklessness has consequences.

Biden is up only nine points – 46% to 37% – in a head-to-head in 2024, an extraordinarily small number in cobalt-blue New York.

Or maybe, just maybe, New York isn’t quite so blue any longer — having been mugged by a crime-and-chaos tolerant Democratic political establishment.

Democrats are Trump’s secret weapon. Always have been, always will be.