Republican presidential candidate Ted CruzRafael (Ted) Edward CruzCruz calls for 'every penny' of El Chapo's criminal enterprise to be used for Trump's wall after sentencing Conservatives defend Chris Pratt for wearing 'Don't Tread On Me' T-shirt Google official denies allegations of ties to China MORE laid into Fox News's moderators during Thursday night's debate, jokingly threatening to leave the stage if they keep asking "mean" questions.
 
Turning to moderator Chris WallaceChristopher (Chris) WallaceTrump's tweets unify a fractured Democratic Party Top Democrat blasts Trump's 'racist tweet' about progressive congresswomen Conway: House investigations are 'combovers doing a do-over' MORE, Cruz said, "I would note that the last four questions have been, 'Rand, please attack Ted. Marco, please attack Ted. Chris, please attack Ted. Jeb, please attack Ted.' 
 
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"Gosh, if you guys ask one more mean question, I may have to leave the stage," the Texas senator added, in a shot at front-runner Donald Trump's decision to withdraw from the Republican debate over his battle with Fox News host Megyn Kelly.
 
Cruz, who is vying with Trump to win Monday's Iowa caucuses, has been criticizing the billionaire as being too thin-skinned to answer tough questions and too arrogant to submit himself before Iowa voters at Thursday night's Des Moines debate.
 
After Cruz finished his speech, rival Marco Rubio said: "Don't worry. I'm not leaving the stage, no matter what you ask me."