Sen. Ted Cruz speculated Sunday that Republican presidential rival Donald Trump might be delaying the release of his tax returns because of possible ties with the mob.
"Maybe it is the case that Donald, there have been multiple media reports about Donald's business dealings with the mob, with the mafia," Cruz said on "Meet the Press."
"Maybe his taxes show those business dealings are a lot more extensive than has been reported," he added.
Click through some of Donald Trump's most controversial tweets:
Craziest Donald Trump Tweets
Ted Cruz speculates of possible mafia ties in Donald Trump's tax returns
I told you @TIME Magazine would never pick me as person of the year despite being the big favorite They picked person who is ruining Germany
I would like to wish everyone, including all haters and losers (of which, sadly, there are many) a truly happy and enjoyable Memorial Day!
Just made the point at #NCGOPcon that "we have to protect our border & I think everyone here knows, nobody can build a wall like Trump!"
My twitter has become so powerful that I can actually make my enemies tell the truth.
China's Communist Party has now publicly praised Obama's reelection. They have never had it so good. Will own America soon.
While Jon Stewart is a joke, not very bright and totally overrated, some losers and haters will miss him & his dumb clown humor. Too bad!
Why is Obama playing basketball today? That is why our country is in trouble!
An 'extremely credible source' has called my office and told me that @BarackObama's birth certificate is a fraud.
Remember, I said Derek don't sell your Trump World Tower apartment...its been lucky for you. The day after he sold it, he broke his foot.
I never fall for scams. I am the only person who immediately walked out of my ‘Ali G’ interview
.@cher--I don’t wear a “rug”—it’s mine. And I promise not to talk about your massive plastic surgeries that didn’t work.
The concept of global warming was created by and for the Chinese in order to make U.S. manufacturing non-competitive.
.@katyperry is no bargain but I don't like John Mayer--he dates and tells--be careful Katy (just watch!).
.@BetteMidler talks about my hair but I'm not allowed to talk about her ugly face or body --- so I won't. Is this a double standard?
It's Thursday. How much money did Barack Obama waste today on crony green energy projects?
Truly weird Senator Rand Paul of Kentucky reminds me of a spoiled brat without a properly functioning brain. He was terrible at DEBATE!
Hey @realDonaldTrump - In case you're looking for that tweet you deleted .. I got it right here. http://t.co/a6F98q5xGU
This very expensive GLOBAL WARMING bullshit has got to stop. Our planet is freezing, record low temps,and our GW scientists are stuck in ice
Everyone knows I am right that Robert Pattinson should dump Kristen Stewart. In a couple of years, he will thank me. Be smart, Robert.
26,000 unreported sexual assults in the military-only 238 convictions. What did these geniuses expect when they put men & women together?
Sorry losers and haters, but my I.Q. is one of the highest -and you all know it! Please don't feel so stupid or insecure,it's not your fault
How amazing, the State Health Director who verified copies of Obama’s “birth certificate” died in plane crash today. All others lived
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Cruz repeated the suggestion on ABC's "This Week," seemingly stunning host George Stephanopoulos.
"Business dealings with the mafia?" Stephanopoulos asked, incredulously.
When pressed, Cruz cited news reports that have investigated Trump's alleged ties to New York and Philadelphia crime families decades ago. He specifically named S&A Construction, which was controlled by Anthony "Fat Tony" Salerno and Paul Castellano, who headed two New York crime families, according to CNN.
"ABC, CNN, multiple news reports have reported about his some dealings with, for example, S&A Construction, which was owned by 'Fat Tony' Salerno, who is a mobster who is in jail. It is owned by two of the major New York crime families," Cruz said.
According to CNN, S&A Construction built Trump Plaza condos.
"Well, I think there's something there. Either he's not anywhere near as wealthy as he says he is, or he hasn't been paying the kind of taxes we would expect him to pay. Or perhaps he hasn't been giving money to the vets or the disabled, like he's been telling us he's been doing," Romney said.
Cruz and another Trump rival, Sen. Marco Rubio of Florida, both released partial tax returnsSaturday evening in an attempt to put more pressure on Trump.
For his part, Trump has said he plans to release his returns. But he said he would wait until a federal audit was complete.
"Look, let me just tell you something. Let me just tell you something. I want to release my tax returns but I can't release it while I'm under an audit. We're under a routine audit. I've had it for years. I get audited," Trump said during the Thursday-night Republican presidential debate.
"And obviously if I'm being audited, I'm not going to release a return," he added. "As soon as the audit is done, I love it."