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A Project of The Annenberg Public Policy Center

Rising Measles Cases Driven by Falling Vaccination, Not Illegal Immigration

Rising Measles Cases Driven by Falling Vaccination, Not Illegal Immigration

Rep. Byron Donalds, a Republican from Florida who is running for governor, has blamed “rampant illegal immigration” during the Biden administration for measles outbreaks. But we found no link to illegal immigration in several recent large outbreaks, and infectious disease experts told us that the main driver of the cases is falling measles vaccination rates in the U.S.

Trump Claims Credit for Drug Price Decline. Experts Say It’s More Complicated.

Trump Claims Credit for Drug Price Decline. Experts Say It’s More Complicated.

President Donald Trump and other administration officials are claiming credit for a recent drop in prescription drug prices, citing deals they’ve struck with drugmakers and the launch of the online direct-to-consumer platform TrumpRx. But experts are skeptical those measures have had much impact on prices overall, and they say other factors likely explain most of the decline.

What We Know About Pennsylvania’s Two ‘Measles-Associated’ Deaths

What We Know About Pennsylvania’s Two ‘Measles-Associated’ Deaths

After the Pennsylvania Department of Health announced two cases of measles-related deaths in one county, the local coroner appeared to contradict the account. And in an ongoing spat with Pennsylvania Gov. Josh Shapiro, Health and Human Services Secretary Robert F. Kennedy Jr. has alleged that a Shapiro staffer may have even “fabricated” the deaths. We’ll lay out what we know.

Ad Attacking Cooper Makes False Connection to Murder

Ad Attacking Cooper Makes False Connection to Murder

An ad from a super PAC supporting Republican Senate candidate Michael Whatley features a heart-wrenching testimonial from the father of a woman who was murdered in 2025. The ad falsely implies the accused murderer was one of the prisoners released during the COVID-19 pandemic when Whatley’s Democratic opponent, Roy Cooper, was governor of North Carolina. Cooper had nothing to do with the accused murderer’s release.

The NRSC’s Weak Ties Between Brown and Deadly Interstate Crash in Ohio

The NRSC’s Weak Ties Between Brown and Deadly Interstate Crash in Ohio

In the Ohio Senate race, a Republican ad blames former Sen. Sherrod Brown for a deadly crash in April on an Ohio interstate in which an immigrant was charged with vehicular homicide. But there’s no evidence of any tie between Brown’s votes on immigration, as the ad suggests, and the suspect in this incident.

Trump’s ‘No Tax on Tips’ Claim Doesn’t Add Up

Trump’s ‘No Tax on Tips’ Claim Doesn’t Add Up

The White House has provided no federal data to support President Donald Trump’s claims that because of his “no tax on tips” policy, “440,000 tipped workers” in Nevada “saved an average of $10,000 on their taxes,” and “130,000 tipped workers” in Georgia “saved an average of more than $7,000 on their taxes.”

Kennedy Distorts Stat in Celebrating Obesity Drop

Kennedy Distorts Stat in Celebrating Obesity Drop

In recent public appearances, Health and Human Services Secretary Robert F. Kennedy Jr. has said obesity dropped 3% “in the last year” and suggested the Trump administration deserves at least some of the credit. One poll shows obesity falling by about that much — but the decline happened over several years and began well before President Donald Trump’s current term.

Trump’s Misleading Crime Drop Claims

Trump’s Misleading Crime Drop Claims

In announcing the latest FBI annual report on nationwide crime, President Donald Trump wrongly cast the decline in crime in 2025 as a dramatic turnaround and made misleading claims about the impact of his administration’s policies.

RFK Jr. Falsely Claims New Evidence Supports Splitting MMR Vaccine

RFK Jr. Falsely Claims New Evidence Supports Splitting MMR Vaccine

Following an executive order that called for breaking up the combination measles, mumps and rubella, or MMR, vaccine, Health and Human Services Secretary Robert F. Kennedy Jr. said that a “recent” study “just came out” that “very strongly supports” the idea. But there’s no evidence of any such credible study, past or present.