Trump admin updates: White House officials hold prayer vigil for Charlie Kirk

Asked by ABC News if he agrees with President Donald Trump's comments that certain vaccines work "pure and simple," Health and Human Services Secretary Robert F. Kennedy Jr. said, "I agree with that."

Trump on Friday, when asked about the change in school requirements in Florida, said the decision ran the risk of spreading diseases and issued his support for vaccines that "work." Trump defended the polio and COVID vaccines, specifically.

"Look, you have vaccines that work. They just pure and simple work. They're not controversial at all. And I think those vaccines should be used. Otherwise some people are going to catch it and they endanger other people," Trump told reporters.

ABC News also asked Kennedy about any further changes he plans to make to vaccine access, beyond the COVID shot. He said the CDC panel meeting later this month would make that determination after a "real gold standard scientific review."

-ABC News' Cheyenne Haslett

The Supreme Court has agreed to an expedited review of President Donald Trump's appeal of lower court decisions that his sweeping global tariffs are unlawful. Arguments in the high-stakes case will be heard the first week of November, according to an order released by the court on Tuesday afternoon.

-ABC News' Devin Dwyer

White House press secretary Karoline Leavitt was asked about the Epstein case and if President Donald Trump was willing to meet with the victims of Epstein's crimes

The press secretary said the Justice Department has "done more in terms of transparency when it comes to the Epstein case than any prior administration.

"Why are the Democrats all of a sudden caring about this? It's because they're desperately trying to concoct a hoax to smear the president of the United States. We have seen this time and time again," she said.

When another reporter asked about the alleged letter that Trump gave to Epstein for a 50th "birthday book," Leavitt repeated Trump's denial that he wrote and drew the letter. She maintained that the signature on the image is not his.

Trump himself has not made a claim about the signature.

When asked by another reporter if the White House was open to getting a handwriting expert to review the signature, Leavitt responded, "Sure, we would support that."

President Donald Trump spoke with Israeli Prime Minister Benjamin Netanyahu and the prime minister of Qatar after Israel's strike in Doha targeting senior Hamas leadership, White House press secretary Karoline Leavitt said Thursday.

Leavitt read out a statement from the White House on the strike, which showed some daylight between the U.S. and Israel. Trump "feels very badly" about the location of the strike, Leavitt said, describing it as an "unfortunate incident."

"This morning, the Trump administration was notified by the United States military that as Israel was attacking Hamas, which very unfortunately was located in a section of Doha, the capital of Qatar, unilaterally bombing inside Qatar, a sovereign nation and close ally of the United States that is working very hard and bravely taking risks with us to broker peace does not advance Israel or America's goals," Leavitt said.

"However, eliminating Hamas, who have profited off the misery of those living in Gaza, is a worthy goal. President Trump immediately directed special envoy [Steve] Witkoff to inform the Qataris of the impending attack, which he did," Leavitt continued. "The president views Qatar as a strong ally and friend of the United States, and feels very badly about the location of this attack. President Trump wants all of the hostages in Gaza and the bodies of the dead released in this war to end."

"President Trump believes this unfortunate incident could serve as an opportunity for peace," she added.