In response to Hillary Clinton's suggestion that "nobody likes him," Sen. Bernie Sanders on Tuesday said, "On a good day, my wife likes me."

Clinton criticized Sanders in a documentary set to premiere at the Sundance Film Festival this week, saying: "Nobody likes him, nobody wants to work with him, he got nothing done. He was a career politician."

When asked about Clinton's criticism and why she seemed set on rehashing their battle in the 2016 Democratic primary, Sanders said: "That's a good question. You should ask her."

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Sen. Bernie Sanders on Tuesday did not seem fazed by the latest round of criticism directed at him by former Secretary of State Hillary Clinton.

"On a good day, my wife likes me, so let's clear the air on that one," Sanders told the NBC reporter Geoff Bennett when asked about Clinton's assertion that "nobody likes him."

In a new documentary set to premiere at the Sundance Film Festival this week, Clinton suggested that the Vermont senator is virtually friendless in Washington.

"He was in Congress for years. He had one senator support him," Clinton said in the four-part documentary, according to The Hollywood Reporter. "Nobody likes him, nobody wants to work with him, he got nothing done. He was a career politician. It's all just baloney, and I feel so bad that people got sucked into it."

In an interview with the publication, Clinton also did not commit to supporting Sanders if he were to become the Democratic nominee for president. "I'm not going to go there yet," she said. "We're still in a very vigorous primary season."

This is not the first time Clinton has been critical of Sanders, her top challenger for the 2016 Democratic presidential nomination.

After Clinton became the nominee, Sanders campaigned for the former secretary of state across the US. But supporters of Clinton have blamed Sanders and his supporters, in part, for her ultimate defeat in the general election against Donald Trump. They said that Sanders should've dropped out of the race earlier and that his refusal to do so contributed to divisions in the Democratic Party that boosted Trump's campaign.

Clinton touched on these sentiments in an interview last month with Howard Stern, who asked her if she was "upset" over how long it took Sanders to endorse her in 2016.

"No, disappointed," Clinton said. "And I hope he doesn't do it again to whoever gets the nomination."

"Once is enough. We have to join forces," Clinton added. "He hurt me. There's no doubt about it. He hurt me."

Along the 2020 campaign trail, Sanders has repeatedly said that while he would campaign for the ultimate Democratic presidential nominee, he hopes it's him.

When asked by Bennett on Tuesday why he thought Clinton was still discussing 2016, Sanders said: "That's a good question. You should ask her."

In an earlier statement on Clinton's remarks, Sanders signaled that his priority is Trump's Senate impeachment trial.

"My focus today is on a monumental moment in American history: the impeachment trial of Donald Trump," Sanders said. "Together, we are going to go forward and defeat the most dangerous president in American history."

Recent polling from Morning Consult on voters' opinions of their state's senators found that Sanders was the most popular US senator.

Sanders has placed second in several national polls for the 2020 Democratic primary, behind former Vice President Joe Biden. But Sanders has been dominating the field in terms of fundraising and surging in polls in early-voting states in recent weeks.