Donald Trump Threatens to "Spill the Beans" on Ted Cruz's Wife

Donald Trump and Ted Cruz Split -Getty-H 2016
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"Donald, if you try to attack Heidi, you're more of a coward than I thought," the Texas senator responded.

GOP presidential frontrunner Donald Trump threatened to "spill the beans" about a fellow candidate's wife Tuesday night in response to an attack ad. 

Trump sent the ominous tweet around 7 p.m. PT, aimed at Ted Cruz, who he accused of using a semi-nude photo of his wife, Melania, from a previous GQ photo shoot. 

That ad actually came from anti-Trump super PAC Make America Awesome in an effort to dissuade Mormon voters from picking the billionaire businessman. 

The PAC's founder, Liz Mair, told Vox the ad was not "slut-shaming" Melania Trump. 

"It’s objectionable because in typical porn/porn-lite fashion, it features her handcuffed to a briefcase, looking vulnerable and sends an implicit message of female subservience, as a lot of photos of tethered, naked women produced for male titillation and consumption do. And Mormon women don’t much like that," Mair told Vox

Cruz responded over Twitter to the threat a short time later, referencing wife Heidi Cruz.

A request for additional comment was not immediately returned by the Trump campaign.