In late January 2025, Robert F. Kennedy Jr. sat in front of two Senate committees and needed Republican votes to become health secretary. One of the questions senators kept coming back to was about a trip.

In 2019, Kennedy — then the chairman of an anti-vaccine nonprofit — flew to Samoa. Months later, the island nation had a measles outbreak that killed 83 people, most of them children under five. Senators wanted to know what he had been doing there.

He told them it had nothing to do with vaccines.

Asked by Sen. Ron Wyden, he said: "I went there, nothing to do with vaccines. I went there to introduce a medical informatics system that would digitalize records in Samoa and make health delivery much more efficient." The next day Sen. Ed Markey asked the same thing. "My purpose in going down there had nothing to do with vaccines," Kennedy said.

On August 27, 2026, The Associated Press and The Guardian published a letter that Kennedy wrote to Samoa's prime minister on January 20, 2019 — before the trip, on the letterhead of his anti-vaccine group. In it he asked to send his team to Samoa to run a "detailed health informatics assessment" of "what happened with your MMR vaccines." He used the word vaccine or vaccination eight times.

The prime minister wrote back a month later and welcomed the visit, saying Samoa would benefit from an "independent health assessment of our MMR Vaccines."

What Kennedy did not tell the senators

The backstory matters, because the letter fits into it exactly.

In July 2018, two Samoan children died after being given an MMR shot that had been mixed incorrectly. Two nurses were criminally charged and later pleaded guilty to manslaughter. Samoa stopped all vaccinations for ten months while it sorted it out. Vaccination rates collapsed.

Kennedy's organization, Children's Health Defense, started contacting the Samoan government during that shutdown. Kennedy's letter told the prime minister he suspected the deaths might have come from problems with the vaccine itself — with particular batches — and offered to have his team check.

By the time Kennedy actually arrived in May and June of 2019, Samoa's own top health official had already announced the answer: human error, not the vaccine. Kennedy went anyway, and while he was there he met with anti-vaccine activists. Months later, with vaccination rates still dangerously low, measles broke out and swept the country.

Kennedy's department told the AP the visit "was unrelated to vaccines" and called any suggestion that he lied "outright defamatory." Kennedy was not under oath at his confirmation hearings. Knowingly giving materially false testimony to Congress is a crime anyway, sworn or not, though the AP notes it is rarely prosecuted.

The fourteen votes

On February 13, 2025, the Senate confirmed Kennedy 52 to 48. Every yes vote was a Republican. Mitch McConnell was the only Republican to vote no.

Fourteen of those yes votes came from Republicans we track:

• Marsha Blackburn of Tennessee, now running for governor
• Shelley Moore Capito of West Virginia
• Susan Collins of Maine
• Tom Cotton of Arkansas
• Bill Hagerty of Tennessee
• Jon Husted of Ohio
• Cindy Hyde-Smith of Mississippi
• Roger Marshall of Kansas
• Ashley Moody of Florida
• Pete Ricketts of Nebraska
• Jim Risch of Idaho
• Mike Rounds of South Dakota
• Dan Sullivan of Alaska
• Tommy Tuberville of Alabama, now running for governor

Thirteen of these fourteen voted again this month, at 4:17 in the morning, to make Trump's personal lawyer the attorney general. Collins was the one who did not. Confirmation votes are where a senator's private assurances meet the public record, and the assurances keep losing.

What Susan Collins was promised

Two days before the vote, Collins told Maine Public why she was voting yes. Kennedy had assured her the polio vaccine works and that he would not restrict access to it. He had promised to back research on a Lyme disease vaccine. He had said he would revisit the administration's cuts to research funding that Maine labs depend on. And Sen. Bill Cassidy, the Louisiana doctor who chairs the Senate health committee, had assured her that the committee would hold regular oversight hearings on whatever Kennedy did.

"Based on all of that, I reached the decision to vote for him," Collins said.

She also explained the underlying rule she was following: "In general, I give deference to presidents to build their own team, whether they are Democratic presidents or Republican presidents." She has voted against roughly ten of nearly 200 nominees in her career. More than 180 Maine doctors had signed a national letter, endorsed by about 22,000 physicians, calling Kennedy "actively dangerous" to public health. She voted for him anyway.

That is the same senator the Bangor Daily News found had cast 200 deciding votes in her Senate career. Maine Democrats count 19 of them as deciding votes for Trump nominees, and none against one.

What happened to the promises

Cassidy's stated reason for voting yes was that Kennedy had pledged to leave the government's vaccine advisory committee "without changes." Once in office, Kennedy removed all 17 members of that committee and named his own advisers.

By August of 2025, the Trump administration had fired the CDC director three weeks into the job, after she reportedly refused to sign off on vaccine changes. Collins said she was "alarmed." She said she did not agree with Kennedy's approach to the vaccine committee, which she said "is likely to weaken the independent and professional recommendations of the committee." Then she added: "But, I do believe that he has some valid points about ultra-processed foods and their impact on obesity and the health of many Americans."

Her proposed remedy was oversight. Cassidy's was oversight. Neither of them has a vote to take back.

By June of 2026, Cassidy was on CBS saying flatly that the commitments made to him had been violated, and accusing Kennedy of building public health "upon a foundation of lies."

Roger Marshall celebrated instead. Marshall is a physician, and on the day of the vote he put out a statement calling it "a great day for America, particularly for our nation's children" and thanking the "Make America Healthy Again movement" for pushing Kennedy "across the finish line." He is also the senator who spread COVID misinformation for years and is still saying it.

The MMR vaccine is now the target

Here is what the Samoa letter is worth reading next to.

On August 10, 2026, with Kennedy standing beside him, President Trump signed an executive order telling federal officials to draw up plans, within 90 days, for splitting combination childhood shots into separate injections — the MMR shot specifically — and for spreading vaccine appointments further apart.

There are no separate measles, mumps or rubella vaccines sold in the United States. Every version the FDA has approved is a combination shot, and has been since the 1970s. Breaking the MMR apart would turn two doctor visits into six, and would require drug companies to spend years and tens of millions of dollars on new studies and new factories to make shots nobody has asked for.

"To date, there has been no published scientific evidence that shows any benefit in separating the combination MMR vaccine into three individual shots," Merck said.

Dr. Anna Durbin of Johns Hopkins put the consequence plainly: "It's going to be less convenient, more expensive and you're going to have fewer people getting vaccinated."

Meanwhile, the CDC's own count says the United States has confirmed 2,777 measles cases in 2026 as of August 20 — more than the 2,289 recorded in all of 2025, with four months of the year still to run. Ninety-four percent of this year's cases are in people who were unvaccinated or whose vaccination status is unknown. Kindergarten MMR coverage has slid from 95.2 percent in the 2019–20 school year to 92.4 percent in 2025–26, which the CDC estimates leaves about 280,000 kindergartners unprotected.

This is the same secretary who headlined a May fundraiser in San Antonio for a Republican congressional candidate, six weeks after a judge ruled his vaccine rollbacks unlawful. And it is the same political movement that produced a nominee for governor of Florida who, asked directly whether parents should vaccinate their children against measles, answered "No".

Who would have to investigate

Wyden, the top Democrat on the Senate Finance Committee, says he will press Republicans to refer the matter to the Justice Department, and that he will pursue it if Democrats take the Senate this fall. "There are consequences for lying to Congress," he said.

Attorneys told the AP that lawmakers could use Kennedy's statements as the basis for hearings, an investigation, or an impeachment inquiry. The AP also noted the obvious: none of that is likely to happen in a Republican Congress aligned with the administration.

That is not an abstract institutional problem. It is a decision that belongs to specific people. Collins sits on the health committee that was promised regular oversight hearings on exactly this. Capito, Cotton, Hagerty, Husted, Hyde-Smith, Marshall, Moody, Ricketts, Risch, Rounds and Sullivan all still hold the seats they voted from, and any of them can ask for a hearing.

What the record shows

Fourteen Republican senators we track voted to confirm Robert F. Kennedy Jr. after he told Congress his 2019 Samoa trip had nothing to do with vaccines. A letter he wrote before that trip, obtained by the AP and the Guardian, asked Samoa's prime minister to let his team study the country's MMR vaccines and used the word vaccine or vaccination eight times. Once in office he removed all 17 members of the vaccine advisory committee whose survival was the stated condition of Bill Cassidy's vote, and this month he stood beside the president as Trump ordered planning to break the MMR shot into three. There have been 2,777 confirmed measles cases in the United States so far this year, more than in all of 2025, and the AP reports that an investigation is unlikely in a Republican Congress.

Source

Ali Swenson, "Exclusive: RFK Jr. said a Samoa trip had nothing to do with vaccines. New documents refute that," The Associated Press, August 27, 2026. Photo: Misiona Simo / Samoa Observer via AP.