Republican presidential candidate Ted Cruz Rafael (Ted) Edward CruzLoeffler calls for hearing in wake of Netflix's 'Cuties' Health care in the crosshairs with new Trump Supreme Court list 'Parks and Rec' cast members hosting special reunion to raise money for Wisconsin Democrats MORE is denouncing a Facebook page that suggests Rep. Trey Gowdy Harold (Trey) Watson GowdySunday shows preview: Election integrity dominates as Nov. 3 nears Tim Scott invokes Breonna Taylor, George Floyd in Trump convention speech Sunday shows preview: Republicans gear up for national convention, USPS debate continues in Washington MORE (R-S.C.) regrets endorsing Marco Rubio Marco Antonio RubioFlorida senators pushing to keep Daylight Savings Time during pandemic Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Intelligence chief says Congress will get some in-person election security briefings MORE, after Rubio suggested Cruz's campaign was behind the incident.

"Our campaign had absolutely nothing to do with this fraudulent Facebook post," Cruz said Tuesday. "This kind of deception is deplorable and nothing like it would be tolerated by this campaign."

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Cruz's comments come after Rubio's campaign accused him of "underhanded tactics." A Facebook post from the page "Trey Gowdy Prayers" calls Gowdy's endorsement of Rubio a "grave mistake," adding that "I have changed my mind."

The post, which now appears to be unavailable, goes on to endorse Cruz.

Gowdy quickly blasted Cruz, saying that he's been willing to "spread false information and outright lies in the hopes of winning votes by appealing to our lowest common denominator.

"I’m demanding that Senator Cruz and his campaign repudiate these dishonest and underhanded tactics," he added in the statement released by Rubio's campaign.

Cruz's campaign has been under fire from his GOP presidential competitors, who suggest he's used questionable tactics during the primary.

Carson, who says Cruz's tactics hurt him in Iowa, declined after the debate to call Cruz a liar, instead saying that he believes "there are liars in his campaign."

The latest accusations come as Cruz, Rubio and Carson are scheduled to appear in a CNN town hall event Wednesday as they battle ahead of the South Carolina GOP primary on Saturday.