Kennedy promises exhaustive studies to identify any environmental factors that may cause autism

WASHINGTON (AP) — Health secretary Robert F. Kennedy Jr. warned that children in the U.S. are being diagnosed with autism at an “alarming rate,” promising on Wednesday to conduct exhaustive studies to identify any environmental factors that may cause the developmental disorder.

His call comes the day after the Centers for Disease Control and Prevention released a report that found an estimated 1 in 31 U.S. children have autism, a marked increase from 2020.

Autism experts applaud efforts to further understand the condition, but say the number of reported cases began to balloon as the definition of the condition expanded to include mild cases.

“Autism destroys families," Kennedy said. "More importantly, it destroys our greatest resource, which is our children. These are children who should not be suffering like this.”

Kennedy described autism as a “preventable disease,” although researchers and scientists have identified genetic factors that are associated with it. Autism is not considered a disease, but a complex disorder that affects the brain. Cases range widely in severity, with symptoms that can include delays in language, learning, and social or emotional skills. Some autistic traits can go unnoticed well into adulthood.

Those who have spent decades researching autism have found no single cause. Besides genetics, scientists have identified various possible factors, including the age of a child’s father, the mother’s weight, and whether she had diabetes or was exposed to certain chemicals.

Kennedy said his wide-ranging plan to determine the cause of autism will look at all of those environmental factors, and others. He had previously set a September deadline for determining what causes autism, but said Wednesday that by then, his department will determine at least “some” of the answers.

The effort will involve issuing grants to universities and researchers, Kennedy said. He said the researchers will be encouraged to “follow the science, no matter what it says.”

The Trump administration has recently canceled billions of dollars in grants for health and science research sent to universities.

The CDC’s latest autism data was from 14 states and Puerto Rico in 2022. The previous estimate — from 2020 — was 1 in 36.

Boys continue to be diagnosed more than girls, and the highest rates are among children who are Asian/Pacific Islander, American Indian/Alaska Native and Black.

To estimate how common autism is, the CDC checked health and school records for 8-year-olds, because most cases are diagnosed by that age. Other researchers have their own estimates, but experts say the CDC’s estimate is the most rigorous and the gold standard.

On Wednesday, Kennedy criticized theories that the rise in autism cases can be attributed to more awareness about the disorder. Autism researchers have cited heightened awareness, as well as medical advancements and increased diagnoses of mild cases.

“The reasons for increases in autism diagnosis come down to scientific and health care progress,” said Annette Estes, director of the autism center at the University of Washington. "It's hard for many people to understand this because the causes of autism are complex.”

The Autism Science Foundation said Kennedy’s emphasis on environmental factors contradicted the findings in the CDC’s report.

“This report is the most convincing evidence yet that changes in factors like access to services and de-stigmatization of (autism spectrum disorders) are leading to the increases in prevalence,” said Autism Science Foundation Chief Science Officer Dr. Alycia Halladay.

Associated Press writers JoNel Aleccia in Temecula, California, and Mike Stobbe in Atlanta contributed to this report.

Health and Human Services Secretary Robert F. Kennedy Jr. speaks during a news conference on the Autism report by the CDC at the Hubert Humphrey Building Auditorium in Washington, Wednesday, April 16, 2025. (AP Photo/Jose Luis Magana)

Health and Human Services Secretary Robert F. Kennedy Jr. speaks during a news conference on the Autism report by the CDC at the Hubert Humphrey Building Auditorium in Washington, Wednesday, April 16, 2025. (AP Photo/Jose Luis Magana)

Health and Human Services Secretary Robert F. Kennedy Jr. speaks during a news conference on the Autism report by the CDC at the Hubert Humphrey Building Auditorium in Washington, Wednesday, April 16, 2025. (AP Photo/Jose Luis Magana)

Health and Human Services Secretary Robert F. Kennedy Jr. speaks during a news conference on the Autism report by the CDC at the Hubert Humphrey Building Auditorium in Washington, Wednesday, April 16, 2025. (AP Photo/Jose Luis Magana)

Health and Human Services Secretary Robert F. Kennedy Jr. speaks during a news conference on the Autism report by the CDC at the Hubert Humphrey Building Auditorium in Washington, Wednesday, April 16, 2025. (AP Photo/Jose Luis Magana)

Health and Human Services Secretary Robert F. Kennedy Jr. speaks during a news conference on the Autism report by the CDC at the Hubert Humphrey Building Auditorium in Washington, Wednesday, April 16, 2025. (AP Photo/Jose Luis Magana)

Health and Human Services Secretary Robert F. Kennedy Jr. speaks during a news conference on the Autism report by the CDC at the Hubert Humphrey Building Auditorium in Washington, Wednesday, April 16, 2025. (AP Photo/Jose Luis Magana)

Federal Reserve Chair Jerome Powellsaid Sunday the Department of Justice has served the central bank with subpoenas and threatened it with a criminal indictment over his testimony this summer about the Fed’s building renovations.

The move represents an unprecedented escalation in President Donald Trump’s battle with the Fed, an independent agency he's repeatedly attacked for not cutting its key interest rate as sharply as he prefers. The renewed fight will likely rattle financial markets Monday and could over time escalate borrowing costs for mortgages and other loans.

The subpoenas relate to Powell’s testimony before the Senate Banking Committee in June, the Fed chair said, regarding the Fed’s $2.5 billion renovation of two office buildings, a project Trump has criticized as excessive.

Here's the latest:

Stocks are falling on Wall Street after Federal Reserve Chair Jerome Powell said the Department of Justice had served the central bank with subpoenas and threatened it with a criminal indictment over his testimony about the Fed’s building renovations.

The S&P 500 fell 0.3% in early trading Monday. The Dow Jones Industrial Average lost 384 points, or 0.8%, and the Nasdaq composite fell 0.2%.

Powell characterized the threat of criminal charges as pretexts to undermine the Fed’s independence in setting interest rates, its main tool for fighting inflation. The threat is the latest escalation in President Trump’s feud with the Fed.

▶ Read more about the financial markets

She says she had “a very good conversation” with Trump on Monday morning about topics including “security with respect to our sovereignties.”

Last week, Sheinbaum had said she was seeking a conversation with Trump or U.S. Secretary of State Marco Rubio after the U.S. president made comments in an interview that he was ready to confront drug cartels on the ground and repeated the accusation that cartels were running Mexico.

Trump’s offers of using U.S. forces against Mexican cartels took on a new weight after the Trump administration deposed Venezuelan President Nicolás Maduro. Sheinbaum was expected to share more about their conversation later Monday.

A leader of the Canadian government is visiting China this week for the first time in nearly a decade, a bid to rebuild his country’s fractured relations with the world’s second-largest economy — and reduce Canada’s dependence on the United States, its neighbor and until recently one of its most supportive and unswerving allies.

The push by Prime Minster Mark Carney, who arrives Wednesday, is part of a major rethink as ties sour with the United States — the world’s No. 1 economy and long the largest trading partner for Canada by far.

Carney aims to double Canada’s non-U.S. exports in the next decade in the face of President Trump’s tariffs and the American leader’s musing that Canada could become “the 51st state.”

▶ Read more about relations between Canada and China

The comment by a Chinese Foreign Ministry spokesperson came in response to a question at a regular daily briefing. President Trump has said he would like to make a deal to acquire Greenland, a semiautonomous region of NATO ally Denmark, to prevent Russia or China from taking it over.

Tensions have grown between Washington, Denmark and Greenland this month as Trump and his administration push the issue and the White House considers a range of options, including military force, to acquire the vast Arctic island.

Danish Prime Minister Mette Frederiksen has warned that an American takeover of Greenland would mark the end of NATO.

▶ Read more about the U.S. and Greenland

Trump said Sunday that he is “inclined” to keep ExxonMobil out of Venezuela after its top executive was skeptical about oil investment efforts in the country after the toppling of former President Nicolás Maduro.

“I didn’t like Exxon’s response,” Trump said to reporters on Air Force One as he departed West Palm Beach, Florida. “They’re playing too cute.”

During a meeting Friday with oil executives, Trump tried to assuage the concerns of the companies and said they would be dealing directly with the U.S., rather than the Venezuelan government.

Some, however, weren’t convinced.

“If we look at the commercial constructs and frameworks in place today in Venezuela, today it’s uninvestable,” said Darren Woods, CEO of ExxonMobil, the largest U.S. oil company.

An ExxonMobil spokesperson did not immediately respond Sunday to a request for comment.

▶ Read more about Trump’s comments on ExxonMobil

Trump’s motorcade took a different route than usual to the airport as he was departing Florida on Sunday due to a “suspicious object,” according to the White House.

The object, which the White House did not describe, was discovered during security sweeps in advance of Trump’s arrival at Palm Beach International Airport.

“A further investigation was warranted and the presidential motorcade route was adjusted accordingly,” White House press secretary Karoline Leavitt said in a statement Sunday.

The president, when asked about the package by reporters, said, “I know nothing about it.”

Anthony Guglielmi, the spokesman for U.S. Secret Service, said the secondary route was taken just as a precaution and that “that is standard protocol.”

▶ Read more about the “suspicious object”

Trump said Iran wants to negotiate with Washington after his threat to strike the Islamic Republic over its bloody crackdown on protesters, a move coming as activists said Monday the death toll in the nationwide demonstrations rose to at least 544.

Iran had no direct reaction to Trump’s comments, which came after the foreign minister of Oman — long an interlocutor between Washington and Tehran — traveled to Iran this weekend. It also remains unclear just what Iran could promise, particularly as Trump has set strict demands over its nuclear program and its ballistic missile arsenal, which Tehran insists is crucial for its national defense.

Iranian Foreign Minister Abbas Araghchi, speaking to foreign diplomats in Tehran, insisted “the situation has come under total control” in fiery remarks that blamed Israel and the U.S. for the violence, without offering evidence.

▶ Read more about the possible negotiations and follow live updates

Fed Chair Powell said Sunday the DOJ has served the central bank with subpoenas and threatened it with a criminal indictment over his testimony this summer about the Fed’s building renovations.

The move represents an unprecedented escalation in Trump’s battle with the Fed, an independent agency he has repeatedly attacked for not cutting its key interest rate as sharply as he prefers. The renewed fight will likely rattle financial markets Monday and could over time escalate borrowing costs for mortgages and other loans.

The subpoenas relate to Powell’s testimony before the Senate Banking Committee in June, the Fed chair said, regarding the Fed’s $2.5 billion renovation of two office buildings, a project that Trump has criticized as excessive.

Powell on Sunday cast off what has up to this point been a restrained approach to Trump’s criticisms and personal insults, which he has mostly ignored. Instead, Powell issued a video statement in which he bluntly characterized the threat of criminal charges as simple “pretexts” to undermine the Fed’s independence when it comes to setting interest rates.

▶ Read more about the subpoenas

President Donald Trump speaks to reporters while in flight on Air Force One to Joint Base Andrews, Md., Sunday, Jan. 11, 2026. (AP Photo/Julia Demaree Nikhinson)

President Donald Trump waves after arriving on Air Force One from Florida, Sunday, Jan. 11, 2026, at Joint Base Andrews, Md. (AP Photo/Julia Demaree Nikhinson)