Hillary Clinton and Bernie Sanders unleashed some of their harshest criticism and sharpest attacks yet in their final debate before New York's Democratic primary. The stakes were high for both candidates walking into this Brooklyn forum: New York offers Clinton her first real chance to end her rival's hot streak and Sanders' last chance to reset this primary. And neither held back during the debate.

1. Sanders tries to make nice on qualified comments, Clinton throws it in his face

Sanders, criticized earlier this week for questioning whether Clinton was qualified to be president, sounded like he wanted to squash the dispute by saying she had both the ability and intelligence to be a competent president. But then he questioned her "judgment" for voting to authorize the war in Iraq, which Sanders called "the worst foreign policy blunder in the history of this country."

He didn't stop there, questioning her judgment on trade, super PACs, and Wall Street.

Clinton didn't let any of that fly. She said New Yorkers found her judgment sound when they elected her as senator twice and that "President Obama trusted me enough to be secretary of State of the United States." Then she went after him, pointing to the New York Daily News editorial page where he stumbled through multiple foreign policy questions.

"I think you need to have the judgment on day one to be president and commander in chief," Clinton said.

2. Clinton and Sanders argue over who's tougher on Wall Street
When asked to bring up an example of how Clinton has been swayed by donations from Wall Street, Sanders quickly pivoted to well-worn criticism of her paid speeches for Goldman Sachs. "Secretary Clinton was busy giving speeches to Goldman Sachs for $225,000 a speech," Sanders said before digressing to his calls for breaking up the biggest banks in the country. "The proper response in my view is we should break them up and that's what my legislation does."

Weak sauce, said Clinton. "He cannot come up with any example because there is no example," Clinton said. "I stood up against the behaviors of the banks when I was a senator. I called them out on their mortgage behavior."

Sanders then got sarcastic. "They must have been crushed by this," he quipped before once again bringing up the speeches. "They must have been very very upset by what you did."

3. Crowd roars when Clinton transcripts comes up
But Sanders was on to something. One of the loudest roars from the audience came when Clinton was asked by the moderators why she has not released the transcripts of her paid speeches to major financial institutions.

She sidestepped: "There isn't an issue." She then pivoted to argue that Sanders and Donald Trump should release their tax returns.

"There is a longstanding expectation that everybody running release their tax returns," Clinton said. "I think Sen. Sanders and Donald Trump should do the same."

Sanders said he would release some of his tax returns. He said he would start with his 2014 tax returns.