New Jersey Gov. Chris Christie labeled former secretary of state and 2016 Democratic presidential nominee Hillary Clinton a "criminal" during Christie's appearance on New York's WFAN sports radio July 10.
Christie was hosting the drive-time show shortly after a poll was released giving him low approval ratings, Politico reported.
Christie made the comment about Clinton during a conversation with a caller who said he "represents the other side" and thinks Christie has done a "horrible job" as governor.
Asked by the caller how it was possible to support President Trump, Christie responded that he was "relieved" that the U.S. does not have "a criminal like Hillary Clinton in the White House."
Another caller criticized Christie over a recent photo in which he appeared with his family on a private beach during the government shutdown.
"You know, Mike, I love getting calls from communists in Montclair," Christie answered, according to Politico.
"Communists in Montclair? You're a bully, governor," the caller retorted. "And I don't like bullies!"
Christie's approval rating dropped to 15 percent in a July 10 poll released by Monmouth University. Four out of five New Jersey residents disapproved of Christie's performance as governor, giving him a disapproval rating of 80 percent.
The figures, collected by Monmouth University in telephone surveys with 800 adults between July 6 and 9, represent a decline in Christie's approval rating from May 2016, when it stood at 27 percent.
Slightly more than half -- 54 percent -- of respondents said New Jersey was worse off because of Christie's term in office, while 15 percent said it was better off. In 2016, 41 percent said the state was worse off due to Christie.
Christie also got bad numbers on the question of his dedication to New Jersey, as 79 percent of those polled stated that Christie puts his own political future before governing the state and only 14 percent said he puts the state first.
Two-thirds of respondents gave negative reactions to the pictures of Christie on a private beach with his family.
"It really is difficult to drive approval ratings into the single digits barring something like a criminal conviction," Patrick Murray, director of the Independent Monmouth University Polling Institute, said. "However, you have to admire Christie's seeming tenacity for trying to get his numbers down to that level. In reality, Christie may have found the floor for his ratings, but it's a level where most of his constituents now feel his time in office has hurt the state."
Christie did not appear troubled by the numbers during his radio show. He is due to leave office in January 2018.
"The later you get in your term, the less you care," he said, according to Politico. "All that matters is if you think you're doing your job the right way."