In a heated exchange, a 21-year-old student asked why former Vice President Joe Biden did not do well in the recent Iowa Caucus. It seemed to strike Biden’s nerves as he snapped and called her a “lying, dog-faced pony soldier.”

During his visit to New Hampshire, Madison Moore, a student from Mercer University, confronted Biden by asking why he flopped in the Iowa caucus.

Moore asked, “You’re arguably the candidate with the greatest advantage in this race, how do you explain the performance in Iowa, and why should the voters believe that you can win the national election?”

Biden, who had a history of giving out problematic statements during his campaign trail, did not immediately answer the question, rather, he used this as an opportunity to mock and insult the student.

In retaliation, Biden asked Moore “You ever been to a caucus?”

Moore claimed that she had. Then Biden pointed out that “No, you haven’t. You’re a lying, dog-faced pony soldier! ”

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As a response, Moore told the Washington Post that Biden’s reaction reflects his incapability to win the election. “Joe Biden has been performing incredibly poorly in this race. His inability to answer a simple question from a nobody college student like me only exacerbates that reality,” Moore said.

Moore added that “I asked Joe Biden a fair question. His immediate response was to question whether I had ever attended a caucus. In my nervousness in the presence of the former Vice President, I nodded yes.”

In another interview for the Macon Telegraph, Moore said she was insulted by Biden’s response.

“It was kind of humiliating to be called a liar on national TV by the former vice president. Instead of answering that question straight forward, his immediate response was to attempt to invalidate me by exposing my inexperience.”

The problem is that it is not the first time that Biden had been under fire for his problematic statements. Back in June, activist K.C. Cayo asked about Biden’s stance on the Hyde Amendment, a law that will discourage abortions by taking out federal funding, but instead of providing a clear and concise answer, Biden went the opposite way as Cayo wrote:

“[Biden] leaned in very close to my face, and started wagging his finger at me, saying, nobody has spoken about it, done more, or changed more than I have.” Cayo added that “I wasn’t able to even finish my 30-second elevator pitch—I never got past the first sentence. Just the fact that he wagged his finger at me in such a condescending manner is very telling.” Then in September, Lyz Lens, a moderator for an LGBTQ forum brought out Biden’s seemingly contradictory statements.

Lenz said that Biden had been in favor of the “Don’t ask, Don’t tell” and the Defense of Marriage Act. However, Biden had also praised Vice President Mike Pence as a “decent guy,” despite his reservations on the two topics.

Biden gave a bizarre response, “You’re a lovely person,” he said.

His recent visit to a Town Hall in Iowa did not also go as planned, as Biden mixed up countries in his statements.

“That’s like just flat out acknowledging, we’ve been doing everything we can do to keep Biden from being the nominee. And guess what? We tried it in Iraq, it’s not working so well, I mean in Iran, excuse me, we tried in Ukraine,” Biden said.