Vice President Kamala Harris may not get another debate with former President Donald J. Trump, but on Wednesday, she got one with Bret Baier.

In an interview that turned contentious almost the instant it began, Mr. Baier, Fox News’s chief political anchor, repeatedly pressed the Democratic presidential nominee on illegal immigration, taxpayer support for gender-transition surgery and other areas that closely aligned with Mr. Trump’s regular attacks against her.

At one point, Mr. Baier wondered if the vice president considered Mr. Trump’s supporters “stupid.” (“I would never say that about the American people,” she replied.) At another point, he asked if she would apologize to the mother of a murdered 12-year-old Texas girl whose death is frequently invoked by Mr. Trump because two recent Venezuelan migrants were charged with the crime.

Mr. Baier’s aggressive demeanor was consistent with the kind of tough coverage of Ms. Harris that blankets Fox News’s daily programming. Lots of viewers were surely eager to hear how she would respond when confronted head-on.

Frequently, however, Mr. Baier did not give viewers that chance. Instead, looking frustrated, he cut off several of Ms. Harris’s answers after a few seconds. His first interruption came within the first half-minute of their exchange.

“May I please finish responding?” Ms. Harris asked at one point. “I’m in the middle of responding to the point you’re making, and I’d like to finish.”

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