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Bernie Sanders questioned Hillary Clinton's qualification after he struggled to explain to The Daily News editorial board how he would break up big banks.

CLEVELAND, Ohio -- This week, Bernie Sanders questioned Hillary Clinton's qualifications to be president after he struggled to explain how he would break up big banks.

In an endorsement interview with the editorial board of The Daily News of New York, Sanders demonstrated he didn't have a good grasp of how big banks could be broken up under current law, or the consequences of that happening for bank employees.

Sanders incorrectly seemed to think that as president he could authorize the Treasury Secretary to force banks to break up under the current Dodd-Frank law, without new legislation being passed.

In light of Sanders struggles in the endorsement interview, MSNBC's Joe Scarborough asked Hillary Clinton if Sanders was "qualified and ready to be president of the United States." Clinton said, "Well, I think he hadn't done his homework and he'd been talking for more than a year about doing things that he obviously hadn't really studied or understood, and that does raise a lot of questions."

That response also raised Sanders' sniping quotient. "She has been saying lately that she thinks that I am, quote-unquote, not qualified to be president. Let me just say in response to Secretary Clinton, I don't believe that she is qualified if she is, through her super PAC, taking tens of millions of dollars in special interest funds."

In the interview with Scarborough, Clinton never actually said Sanders was "not qualified" as Sanders claimed. Clinton and other Sanders critics have long suggested Sanders' pie-in-the sky proposals lacked filling. Sanders himself confirmed that with his answers in the endorsement interview and then by incorrectly claiming Clinton said he was "quote-unquote" not qualified.

In an odd twist in an already twisted campaign, Sanders demonstrated he has something else in common with Trump besides crazy hair and rabid supporters. Like Trump, he's locked and loaded with quips and soundbites but short on details.

Sanders will point to his win in the Wyoming caucus Saturday as further proof that like the Republicans, the Democrats may have a contested convention. That's another pie Sanders is throwing up in the sky. Both Sanders and Clinton came out of the Wyoming caucus with 7 delegates each. Clinton still has 219 delegate lead and is ahead in New York. Sanders will have a tough time beating Clinton Tuesday, not just because it's her adopted home state. But because Sanders doesn't do well in states that truly have a diverse demographic and are closed primaries.

This week, Sanders and Clinton both showed that at the very least, they're qualified at distracting attention away from the candidates they should really be attacking -- Trump, Cruz and Kasich.