The Bernie Sanders campaign is saying no to war — this time with Elizabeth Warren.

Senior surrogates for the socialist senator from Vermont took to Twitter Saturday to call for a truce with Warren, warning that continued bickering with her would undermine progressive chances to win the 2020 Democratic presidential nomination.

“If progressives attack each other, that may depress turnout & a centrist Democrat can win. Anyone tempted to spend valuable time and energy arguing with fellow progressives should pick up the phone & call voters to boost turnout for stopping war, M4A, & free public college,” Rep. Ro Khanna (D-Calif.), a national co-chairman of Sanders campaign said in a tweet.

The sentiment was echoed by Sanders’ national political director, Analilia Mejia.

“Victory is within reach, for all of us,” she said in a tweet of her own while sharing an op-ed from the liberal website BuzzFeed warning that “now is not the time for infighting” among progressives.

After several collegial debates during the 2020 primary, Warren and Sanders descended into acrimony after Warren alleged that Sanders privately told her in 2018 that a woman could not be elected President of the United States. Sanders has vehemently denied the charge, with his allies pointing to video proof of him saying the opposite decades ago.

After a tense debate this week in which Sanders again reiterated his position, Warren accused him of “call[ing] me a liar on national TV.”

“You know, let’s not do it right now. If you want to have that discussion, we’ll have that discussion,” Sanders shot back before throwing up his hands and walking away.