Earlier this week, an anti-Trump Super PAC, Make America Awesome, published an ad featuring a photo of Trump's wife Melania lounging nude. Trump then threatened to "spill the beans" on Cruz's wife.
"Donald, real men don't attack women. Your wife is lovely, and Heidi is the love of my life," Cruz said in a post on Twitter early on Thursday.
His tweet followed one moments earlier by Trump, the Republican front-runner in the race, in which he retweeted an image featuring a less-than-flattering picture of Heidi Cruz juxtaposed with a glamorous photo of Melania.
Cruz denied having anything to do with the nude photo, blaming it on a Super PAC with which he has no affiliation.
The director of Make America Awesome, Liz Mair, posted on Twitter on Wednesday that her group was responsible for the ad.
http://www.reuters.com/article/us-usa-election-idUSKCN0WQ1ER