Senator Cassidy criticizes Trump’s vaccine order

Sen. Bill Cassidy, a Louisiana Republican and medical doctor, sharply criticized President Trump on Monday after Trump signed an executive order to split the combined measles, mumps and rubella (MMR) vaccine into three separate injections administered over multiple doctor visits.

Cassidy said the order ignores medical consensus and ignores public health guidance. In a statement and on social media, he called the decision wrong, saying vaccines are overwhelmingly safe and effective. He added that Trump, who has no medical background, lacks the expertise to make such changes. The White House has not yet detailed how the rollout would work or how it would affect vaccination rates, which are already below target levels in many communities.

The order comes amid rising measles outbreaks in the U.S., fueled by vaccine hesitancy and misinformation. The MMR vaccine has been safely used for decades, with the CDC and the American Academy of Pediatrics strongly recommending the combined shot for full protection. Public health experts warn that splitting doses could lead to delays, missed vaccinations and even outbreaks. Cassidy, who serves on the Senate Health Committee, said he feared the move would undermine trust in vaccines at a time when confidence is already fragile.

Cassidy called on the administration to reverse the order, saying it puts children at risk. He also urged Congress to clarify vaccine policy through legislation rather than executive action. The White House has not responded to requests for comment. If the order stands, states may face new challenges in implementing vaccination schedules, potentially widening gaps in herd immunity. The debate highlights ongoing tensions between political leadership and scientific expertise in shaping public health policy.