Rep. Marjorie Taylor Greene (R-GA) drew instant ridicule on Monday when she posted a repeatedly debunked claim linking vaccines to autism.

“I fully believe vaccines cause Autism,” Greene wrote on X. “It’s another example of crimes against humanity. And innocent babies, 𝘤𝘩𝘪𝘭𝘥ren, and their families are the victims.”

A community note posted after Greene’s X post provided a lengthy trove of links to scientific literature debunking the purported connection between vaccines and autism.

The Georgia congresswoman, who first rose to notoriety for being a proponent of the QAnon conspiracy theory, received instant backlash from many of her followers for her claim.

“I mean, but you are dumb so,” wrote X user Nathaniel Hunt.

“They don’t,” replied Washington Examiner editor Kimberly Ross. “Saying things like this harms 𝘤𝘩𝘪𝘭𝘥ren overall. MTG continues to behave like a lunatic.”

Former GOP pollster Frank Luntz noted Greene’s long history of supporting baseless conspiracy theories.

“Marjorie Taylor Greene has also believed: Sandy Hook was staged, the 2018 California wildfires were set by Roths𝘤𝘩𝘪𝘭𝘥 associates from outer space; The 2024 eclipse was “God telling us to repent,” he wrote while providing links documenting the statements.

CNN’s Bakari Sellers, meanwhile, simply wrote, “This is embarrassing.”

X user Jenn Leaver had a more dire assessment of Greene, however.

“These idiots are going to destroy us,” she concluded.