Bernie Sanders is banking on a strong finish in New York's primary this month to boost his presidential campaign.

The Brooklyn-born candidate failed a basic test this week, however, when he revealed in a newly released interview that he had no idea how the subway system works.

Unable to say how he'd pay for a ride on the transportation system Sanders joked that he'd just he'd hop the turnstile.

And the embarrassment didn't stop there. Sanders repeatedly stumbled over questions pertaining to key provisions of his platform such as breaking up the big banks and prosecuting Wall Street executives.

He also said he hasn't thought 'a whole lot' about what to do with ISIS terrorists captured in battle.

OUT OF TOUCH? Bernie Sanders is banking on a strong finish in New York's primary this month to boost his presidential campaign. The Brooklyn-born candidate failed a basic test this week, however, when he revealed in a newly released interview that he had no idea how the subway system works

'How do you get on the subway today?' he was asked. Sanders replied, 'You get a token and you get in.' 'Wrong,' he was told. The New York City subway system stopped accepting coins more than a decade ago in 2003 and now takes the MetroCard

The grilling came at the hands of the New York Daily News' editorial board during an April 1 interview that it released in full today.

Asked when he last rode the subway and whether he'd campaign in the stations, the Vermont senator said, 'Actually we rode the subway...when we were here? About a year ago? But I know how to ride the subways. I’ve been on them once or twice.'

The news publication was skeptical that he really had been on a New York subway that recently and asked him, 'How do you ride the subway today?''

'What do you mean, "How do you ride the subway?" ' Sanders parroted.

Putting it another way, the questioner said, 'How do you get on the subway today?'

To which Sanders replied, 'You get a token and you get in.'

'Wrong,' he was told.

Trying humor instead, Sanders said, 'You jump over the turnstile.'

'We would like our photographer to be there when you jump over the turnstile,' a board member said before questioning moved on.

The New York City subway system stopped accepting coins more than a decade ago in 2003.

Sanders also struggled to explain how he'd break up the institutions that he says are destroying the 'fabric' of America and cite the laws they've broken.

Specifically asked to name which corporations he was talking about, Sanders said JPMorgan Chase 'and virtually every other major bank in this country.'

'Right now, there are still millions of people in this country who are suffering the results of the greed, recklessness and illegal behavior on Wall Street,' he said.

'And when you have companies like Goldman Sachs and many other major banks reaching settlements with the United States government, as you're aware, for many billions of dollars, this is an implicit admission that they have engaged in illegal activity.'

He went on to include General Electric in his critique after he was pressed to say what corporate entities he was referring to outside of the financial institutions that he regularly hammers.

Back on the topic of banks he thinks are 'too big to fail' however, Sanders was asked what authority he would even have as president to break them up.

The progressive said even some conservatives agree with him on this issue and it's not an 'original' idea. And he hit the banks again for having too much power, but did not answer the question.

Trying humor instead, Sanders said, 'You jump over the turnstile.' 'We would like our photographer to be there when you jump over the turnstile,' a board member said before questioning moved on. A NYC subway turnstile is pictured above

'How you go about doing it is having legislation passed, or giving the authority to the secretary of treasury to determine, under Dodd-Frank, that these banks are a danger to the economy over the problem of too-big-to-fail,' he said.

The board member reviewing him kept pushing and said, 'But do you think that the Fed, now, has that authority?'

'Well, I don't know if the Fed has it. But I think the administration can have it.'

Eventually the conversation came back to his plans for breaking up the banks and Sanders said it is 'their decision as to what they want to do and how they want to reconfigure themselves. That's not my decision.'

'All I am saying is that I do not want to see this country be in a position where it was in 2008, where we have to bail them out. And, in addition, I oppose that kind of concentration of ownership entirely.'

Later in the back and forth he said a president, 'You would determine is that, if a bank is too big to fail, it is too big to exist. And then you have the secretary of treasury and some people who know a lot about this, making that determination. If the determination is that Goldman Sachs or JPMorgan Chase is too big to fail, yes, they will be broken up.

So, like what happened with Metropolitan Life? 'There was an attempt to bring them under the financial regulatory scheme, and the court said no. And what does that presage for your program?'

Unprepared for the comparison Sanders replied, 'It's something I have not studied, honestly, the legal implications of that.'

His answers led to guffaws among policy experts and pundits who were surprised and Sanders' inability to provide details on proposals so integral to his candidacy.

'The Transcript of Sanders' meeting with the Daily News Ed Board is almost as damning as Trump's with the WaPo,' said Dan Pffeifer, a former senior adviser to President Barack Obama.

MSNBC contributor and Washington Post columnist Jonathan Capehart penned a run down of the '9 things Bernie Sanders should’ve known about but didn’t.'

'The more I read the transcript, the more it became clear that the candidate for the Democratic presidential nomination doesn’t know much beyond his standard stump speech about breaking up the banks and how he had the good judgment to vote against the Iraq War in 2002,' Capehart stated.

Of the metro debacle, he said. 'In the grand scheme of things, this isn’t a big deal. This is the Big Apple equivalent of asking a candidate what the price of a gallon of milk is. The answer is supposed to show whether you’re in touch with everyday Americans.

'Sanders’s answer simply reveals that he hasn’t been on a New York City subway with any regularity since 2003, when the MetroCard took over,' he pointed out.

Capehart added, 'As for jumping the turnstile? There’s a reason the Daily News would love a photographer to capture Sanders jumping over one. The attempt would be priceless.'

The embarrassment didn't stop there. Sanders repeatedly stumbled over questions pertaining to key provisions of his platform such as breaking up the big banks and prosecuting Wall Street executives

Sanders was also asked during the interview why Wall Street executives weren't prosecuted after the 2008 financial crash and the Democratic presidential candidate blamed Obama's first attorney general, Eric Holder.

'I would suspect that the answer that some would give you is that while what they did was horrific, and greedy and had a huge impact on our economy, that some suggest that...that those activities were not illegal. I disagree,' he said. 'And I think an aggressive attorney general would have found illegal activity.'

Does that mean that President Obama's Justice Department was 'essentially' in the 'tank'?

'No, I wouldn’t say they were in the tank. I'm saying, a Sanders administration would have a much more aggressive attorney general looking at all of the legal implications,' he contended.

Goldman Sachs' settlement fee of $5 billion compared with other banks that paid less raises questions he said.It's 'not because they're heck of a nice guys who want to pay $5 billion. Something was wrong there. And if something was wrong, I think they were illegal activities.'

Sanders could not say what 'particular statute or statutes that a prosecutor could have or should have invoked to bring indictments,' however.

'I suspect that there are. Yes,' he said.

But he couldn't say with certainty.

'I believe that that is the case. Do I have them in front of me, now, legal statutes? No, I don't. But if I would...yeah, that's what I believe, yes. When a company pays a $5 billion fine for doing something that's illegal, yeah, I think we can bring charges against the executives.'

Further pushed to cite the illegal activities he was concerned about Sanders scoffed and said. 'What kind of fraudulent activity? Fraudulent activity that brought this country into the worst economic decline in its history by selling packages of fraudulent, fraudulent, worthless subprime mortgages. How's that for a start?

'Selling products to people who you knew could not repay them. Lying to people without allowing them to know that in a year, their interest rates would be off the charts. They would not repay that. Bundling these things. Putting them into packages with good mortgages. That's fraudulent activity.'

The interview did not get better. Sanders also ran into trouble in the foreign policy section when he was asked about America's policy toward Israel and Palestine and what to do with a captured terrorist.

Sanders said he would imprison him 'and try to get as much information out of him.'

But 'where would a President Sanders imprison, interrogate? What would you do?' Sanders was asked.

Sanders: 'Actually I haven't thought about it a whole lot. I suppose, somewhere near the locale where that person was captured. The best location where that individual would be safely secured in a way that we can get information out of him.'

For terrorists captured in countries that are unstable such as Libya and Yemen Sanders suggested he'd back extradition or even having the prisoner jailed in the U.S.