The woman, an Obama voter last time who said she was open to voting for Mr. Paul, even approached Mr. Paul’s S.U.V. as he prepared to drive off and began shouting at him through the closed car door to return to the diner and meet her and her mother.

Ms. Bash had asked Mr. Paul to talk about the episode, prompting Mr. Benton to intervene.

In an exchange captured on camera, Mr. Benton and Mr. Paul told Ms. Bash that it was the news media’s fault that he could not talk to more voters at the diner, because a gaggle of cameras had formed around the candidate in the narrow restaurant, restricting his movements.

“You the media did this to her,” Mr. Paul said of the woman in the diner. “She should have been furious with you.”