Health Secretary Robert F. Kennedy Jr., his son, and Senator Rand Paul have all written books criticizing Dr. Anthony S. Fauci. All were published by a company led by a close Kennedy adviser.

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President Trump insists on revisiting and rewriting much of what happened six years ago, including the coronavirus pandemic and the election he lost. Many voters would rather he focus on 2026.

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Republicans have argued that the pre-emptive pardon Dr. Fauci received from former President Biden ought to preclude him from invoking the Fifth Amendment. But the pardon applies only to what happened before it was issued.

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Senator Rand Paul said the committee he leads would vote next week on whether to hold Dr. Fauci in contempt of Congress.

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Dr. Anthony S. Fauci seemed to be the life of the party, even in the midst of a deadly pandemic.

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Diary entries, released by a Republican senator, have reignited a furious debate over whether Covid-19 leaked from a lab.

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