Rubio, Cruz shook hands behind Trump's back at debate
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Marco RubioMarco Antonio RubioStudents gather outside White House after walkout to protest gun violence Overnight Energy: Senate confirms Bridenstine as NASA chief | Watchdog probes Pruitt’s use of security detail | Emails shine light on EPA science policy changes Senate confirms Trump’s pick to lead NASA MORE and Ted CruzRafael (Ted) Edward CruzCruz's Dem challenger slams Time piece praising Trump Race for Republican Speaker rare chance to unify party for election 32 male senators back Senate women's calls to change harassment rules MORE tag teamed Donald TrumpDonald John TrumpIG investigating Comey memos over classified information: report Overnight Defense: Congress poised for busy week on nominations, defense bill | Trump to deliver Naval Academy commencement speech | Trump administration appeals decision to block suspected combatant's transfer Top Pruitt aid requested backdate to resignation letter: report MORE on Thursday in the latest GOP presidential debate, and were spotted shaking hands behind the businessman's back during a commercial break.
 
CNN, which hosted the debate in Houston, shared images of the moment on Friday morning, showing Cruz and Rubio stepping away from their lecterns to shake hands while Trump and Ben Carson remained at their mics.
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Trump spent the night swatting away a continuous stream of attacks on his business record and campaign proposals led by Rubio, who mocked the real estate tycoon for repeating himself instead of providing more details on his healthcare proposal. 
 
Cruz also leveled a series of attacks at Trump, painting him as a liberal and going after an ongoing fraud lawsuit over his namesake university.