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Mitt Romney made big news on Your World Wednesday when he suggested there is a "bombshell" hidden in Donald Trump's tax filings. 

The 2012 presidential candidate called on Trump to show the public his back taxes for the last several years.

He explained that Trump may not be as wealthy as he claims or maybe he hasn't been donating to charities like he's claimed.

"People have a right to know if there's a problem in those taxes before they decide."

Trump responded with a barrage of tweets, calling out Romney for losing to Obama and calling him a "dope."

The Outnumbered hosts discussed the feud this afternoon, with Andrea Tantaros expressing amazement that Romney would bring up taxes.

Tantaros pointed out that in Aug. 2012, Harry Reid spoke on the Senate floor and made an unsubstantiated claim that Romney had not paid taxes in 10 years.

"I can't believe that Mitt Romney would go there. His campaign made such a stink about the dirty tricks and the lies that Harry Reid told," she pointed out. 

Tantaros said that "no one cares what Romney thinks" or about a debate between Romney and Trump about who is richer.

Watch the discussion above.

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