The group, Global Alliance for Responsible Media, also known as GARM, is a voluntary ad-industry initiative run by the World Federation of Advertisers that aims to help brands avoid having their advertisements appear alongside illegal or harmful content. GARM confirmed it is still planning to defend itself in court.
The end of GARM marks a temporary victory for Musk and X CEO Linda Yaccarino, even though a judge hasn’t made a ruling yet.
You would be looking for the Texas Citizens Participation Act. That’s Texas’ Anti-SLAPP law. No idea how it holds up in comparison to other states’ though.
The Texas Anti-SLAPP law is pretty alright, but it doesn’t extend to Federal suits.