At Tuesday nights Democratic presidential debate , Massachusetts Sen. Elizabeth Warren and Vermont Sen. Bernie Sanders carefully sidestepped a potential scuffle over whether Sanders had once told Warren a woman could not win the presidency.

Instead, they got into a pithy skirmish about who was more electable and what counts as three decades.

Bernie is my friend, and Im not here to try to fight with Bernie, said Warren, asked for her reaction to Sanders reported skepticism that a woman could defeat President Donald Trump .

But she and Minnesota Sen. Amy Klobuchar were, in fact, more electable than the men on the stage, Warren said.

Look at the men on this stage, she grinned. Collectively, they have lost 10 elections. The only people on this stage who have won every single election that theyve been in are the women: Amy and me. And the only person on this stage who has beaten an incumbent Republican anytime in the past 30 years is me.

Sanders, for his part, again denied that hed had any doubts about a woman running for president.

Anybody who knows me knows that its incomprehensible that I would think that a woman cannot be president of the United States, he said.

Sanders had sat out the 2016 presidential race until the Draft Warren effort had run its course, he said. And, he added, if either of the women onstage with him were to win the nomination, he would do everything in my power to make sure they are elected in order to defeat the most dangerous president in the history of our country.