Not long ago, candidates running for national office spent much of the general election distancing themselves from the fringes of their parties.

But on Saturday, Senator JD Vance of Ohio will share a stage with someone on the fringes of his.

Mr. Vance, the Republican vice-presidential nominee, is scheduled to appear in Hershey, Pa., as the special guest of the “Tucker Carlson Live” show, just weeks after Mr. Carlson, the former Fox News anchor, praised and aired the views of Darryl Cooper, who falsely claimed that the Holocaust was not an intentional act of genocide.

Subscribe to The Times to read as many articles as you like.phlove

• to
• phlove
• JD
• Appear
• Vance