A New Hampshire Democratic voter whom former Vice President Joe Biden called a “lying dog-faced pony soldier,” has responded by criticizing the presidential hopeful’s message and questioning his electability.

Biden made the bizarre remark during a campaign event in New Hampshire on Sunday. After the young woman, Madison Moore, asked the former vice president about his Iowa failure and why voters should have faith that he can win in the national election, Biden asked her if she’d ever been to a caucus.

While Moore suggested that she had, Biden pushed back. “No, you haven’t. You’re a lying dog-faced pony soldier,” he said. The candidate then went on to argue that Iowa’s “confusing” results are not a good indication of a candidate’s viability.

Speaking to Fox News following the encounter, Moore criticized Biden and his campaign message.

“A lot of what he’s saying, it seems to be really pathos-based and very sad,” the 21-year-old college student said, according to a clip of her comments that aired Monday morning on Fox & Friends. “We’ve heard a lot about deaths and cancer and people losing their jobs. And to me, he doesn’t seem very solution-oriented.”

She added, “I don’t think he has the momentum to carry this to a national election.”

Although many were confused by Biden’s unusual choice of words, a spokeswoman for his campaign tweeted out an explanation.

“It’s from a John Wayne movie, and he’s made it plenty of times before. Sorry to ruin the fun twitter!” Remi Yamamoto wrote. Wayne is probably best known for his roles in Western films.

Biden previously used the line at a November 2018 rally for former Senator Heidi Heitkamp, a Democrat from North Dakota, USA Today reported. The former vice president explained at the time that the line was used “in a John Wayne movie where the Indian chief turns to John Wayne and says, ‘This is a lying dog-faced pony soldier.'”

As Moore noted in her question to Biden, he performed poorly in last week’s Iowa caucuses. Although the results have not been finalized, Biden came in a distant fourth after former Indiana mayor Pete Buttigieg, Senator Bernie Sanders and Senator Elizabeth Warren. Senator Amy Klobuchar was close behind Biden in fifth place.

Polls in New Hampshire have shown that support for Biden has tanked ahead of the state’s Tuesday primary. A new Emerson College poll showed him in fifth place, with only 10 percent support while Warren is in fourth place with 11 percent. Sanders is in the lead with 30 percent, followed by Buttigieg at 23 percent and then Klobuchar at 14 percent.

A separate Boston Globe/Suffolk University poll shows Biden tied for fourth place with Warren, at just 12 percent each.