U.S. Senator Bill Cassidy, M.D., posted a series of tweets on September 18 and 19, 2025, addressing issues ranging from domestic terrorism to public health and commemorative resolutions.
On September 18, Cassidy reiterated his stance against Antifa, stating: “Antifa uses violence and anarchy to intimidate those they disagree with. It’s why I introduced a resolution to designate them as a domestic terrorist organization in 2019.
100% behind President Trump taking action and declaring them A MAJOR TERRORIST ORGANIZATION! https://t.co/aj83x953r5https://t.co/yT6Ggz5Z1K” This tweet references Cassidy’s previous legislative efforts and support for former President Donald Trump’s position on the group.
The following day, on September 19, Cassidy announced his participation in a Senate initiative to honor Charlie Kirk. He wrote: “Proud to join @SenRickScott and my @SenateGOP colleagues in sponsoring a resolution to establish a National Day of Remembrance for Charlie Kirk.
He inspired millions of young people. Let’s ensure his legacy lives on.” This statement highlights bipartisan recognition efforts for Kirk’s influence among youth.
Later that day, Cassidy addressed vaccine access in relation to proposed recommendations by the Advisory Committee on Immunization Practices (ACIP). He stated: “President Trump and I agree: vaccines save lives. If a mom wants to get a lifesaving hepatitis B vaccine to protect her newborn, she should be able to get it. The proposed ACIP recommendation could have put that access at risk, making it harder for that mom or that parent to”
Senator Bill Cassidy represents Louisiana in the U.S. Senate and is known for his work as both a physician and legislator. His advocacy regarding Antifa reflects ongoing debates about political violence in the United States. Proposals designating Antifa as a terrorist organization have been discussed at various government levels but remain controversial due to concerns about civil liberties and definitional clarity.
Charlie Kirk is recognized as the founder of Turning Point USA, an organization aimed at engaging young conservatives in political activism.
The Advisory Committee on Immunization Practices (ACIP) periodically reviews vaccination guidelines; its recommendations can influence national vaccine policy and parental access to immunizations.
