(NEXSTAR) - Republicans, including former President Donald Trump and his 2024 running mate, Senator J.D. Vance of Ohio, have increasingly referred to Vice President Kamala Harris as a failed "border czar." But what does that term actually mean?

The label is being used by both candidates to criticize Harris' handling of the U.S.-Mexico border crisis. During the vice presidential debate Tuesday night, Vance suggested that Harris was appointed the "border czar" under the Biden administration.

"The only thing that she did when she became the vice president -- when she........

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