Liz Cheney calls Sanders a 'commie' in Twitter spat

Rep. Liz CheneyElizabeth (Liz) Lynn CheneyThe Hill's Morning Report - Trump hews to NRA on guns and eyes lower taxes Dick Cheney to attend fundraiser supporting Trump reelection: report Steve King says 'left-wing media' and GOP leadership owe him apology after rape, incest comments MORE (Wyo.), the No. 3 House Republican and the daughter of former Vice President Dick Cheney, sparred with Sen. Bernie SandersBernie Sanders2020 candidates have the chance to embrace smarter education policies Bernie Sanders Adviser talks criminal justice reform proposal, 'Medicare for All' plan Poll shows Biden, Warren tied with Trump in Arizona MORE (I-Vt.) on Twitter on Friday over nuclear policy. 

“No surprise commie @BernieSanders, who honeymooned in Soviet Union, is ok with U.S. getting attacked first,” Cheney tweeted after Sanders, a self-proclaimed democratic socialist, came to Warren’s defense over her position.

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The feud was sparked by a question during Tuesday’s presidential primary debate in which Sen. Elizabeth WarrenElizabeth Ann WarrenKrystal Ball: Elites have chosen Warren as The One; Lauren Claffey: Is AOC wrong about the Electoral College? Poll shows Biden, Warren tied with Trump in Arizona McConnell rejects Democrats' 'radical movement' to abolish filibuster MORE (D-Mass.) said she would, if elected, commit to never be the first nation to use a nuclear weapon in a conflict.

The Wyoming Republican fired the first shot Friday, suggesting Warren’s vow could put major American cities at risk.

“Key question for Elizabeth Warren @ewarren today - which American cities and how many American citizens are you willing to sacrifice with your policy of forcing the US to absorb a nuclear attack before we can strike back?” Cheney asked.

“Taking national security advice from a Cheney has already caused irreparable damage to our country.  We don't need any more, thanks,” Sanders fired back.

Rep. Alexandria Ocasio-CortezAlexandria Ocasio-CortezPoll: Voters split on whether it's acceptable for Israel to deny Omar, Tlaib visas NJ college censures trustee over posts targeting 'the squad' 'The Simpsons' pokes fun at Trump's feud with 'the squad' MORE (D-N.Y.), another progressive firebrand, also hit Cheney’s barb, saying an “entire generation” lived through the consequences of her father’s foreign policy advocating for the Iraq War. 

Sanders’s defense of Warren was notable as the two progressives have refrained from attacking each other as much of the rest of the presidential primary field employs personal broadsides against other contenders.