Bernie Sanders couldn’t have made Hillary Clinton look any more Wall Street if the split screen during last night’s CNN debate showed her lighting stogies with $100 bills at a Delmonico’s table festooned with Baked Alaska and snifters full of brandy, alongside cronies J.P. Morgan and Gordon Gekko.

“I question her judgment about running super PACs which are collecting tens of millions of dollars from special interests, including $15 million from Wall Street,” he railed.

When Clinton fired off her own “judgment” salvo, Sanders took us on a tour of some of Hillary’s “Hard Choices,” to coin a term, beginning with her vote on Iraq and culminating with — you guessed it — “super PACs and 501c(4)s, money that is completely undisclosed. Where does the money come from?” and going on to call her “so dependent on big-money interests.”

You can take Bernie out of Brooklyn, but as witnessed last night, you can’t take Brooklyn out of Bernie.

And what did Hillary have to say to all this?

“This is a phony attack that is designed to raise questions when there is no evidence or support to undergird the insinuations that he is putting forward in these attacks.”

Which candidate is the lawyer — any guesses?

Most of the 99 percent don’t know what “undergird” means, but they sure understand the sentence, “Secretary Clinton was busy giving speeches to Goldman Sachs for $225,000 a speech.”

Last night, Bernie Sanders came to win.

When Clinton, on defense, touted her past rhetoric against Wall Street, Sanders came back strong: “Secretary Clinton called them out. Oh my goodness, they must have been really crushed by this. And was that before or after you received huge sums of money by giving speaking engagements?”

The debate became humdrum when Hillary attacked Bernie on guns. Does anyone look at Bernie Sanders and think, “gun nut”?

I don’t think so.

Hillary appeared to be an exhausted, beaten boxer forced to endure eight more rounds, clinching her opponent all the way up to the merciful ring of the bell.

A win in the New York primary Tuesday is critical for Clinton, coming off losses in seven of the last eight primaries and caucuses, to reassure her backers that she is no Martha Coakley, a two-time choker who can find a way to blow any advantage.

Sanders, on the other hand, has an opportunity to prove that his performance can hold up and, to borrow a phrase, “undergird” his momentum.