Republican presidential candidate Ted CruzRafael (Ted) Edward CruzDebbie Wasserman Schultz marks 10 years as breast cancer survivor Foreign agent registration is no magical shield against Russian propaganda Let Trump be Trump and he'll sail through 2020 MORE on Thursday dismissed harsh criticism from former Speaker John BoehnerJohn Andrew BoehnerJohn Feehery: A political forest fire Trump's pick for Federal Reserve chief is right choice at right time The two-party system is dying — let’s put it out of its misery MORE (R-Ohio).

After a report emerged of BoehnerJohn Andrew BoehnerJohn Feehery: A political forest fire Trump's pick for Federal Reserve chief is right choice at right time The two-party system is dying — let’s put it out of its misery MORE ripping the Texas senator as "Lucifer in the flesh" and a "son of a bitch," Cruz shared a pair of tweets labeling the criticism an "endorsement" coming from Boehner.

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"Tell me again who will stand up to Washington?" Cruz asked in his own tweet, alluding to remarks from Boehner, who said he'd support controversial GOP front-runner Donald TrumpDonald John TrumpHouse Democrat slams Donald Trump Jr. for ‘serious case of amnesia’ after testimony Skier Lindsey Vonn: I don’t want to represent Trump at Olympics Poll: 4 in 10 Republicans think senior Trump advisers had improper dealings with Russia MORE but not Cruz in a general election.

"I have Democrat friends and Republican friends. I get along with almost everyone,” Boehner said during a Wednesday night event at Stanford University, according to The Stanford Daily. “But I have never worked with a more miserable son of a bitch in my life.”

Boehner and Cruz clashed during several standoffs with the Obama administration, including in 2013 when Cruz, as a freshman senator, met with members of the conservative Freedom Caucus in a push to defund ObamaCare, eventually leading to a government shutdown that damaged the GOP image. Boehner later reportedly called Cruz a "jackass."