WASHINGTON – The Supreme Court won’t help conservative provocateur Laura Loomer take on social media companies and their advertisers who have blocked her posts.

Loomer, an influential outside adviser to President Donald Trump, has garnered significant attention for her conspiracy theories and inflammatory comments.

She was banned from Twitter in 2018 for “hateful” conduct. In 2019, Facebook banned Loomer and other controversial figures as "dangerous individuals," saying it bans any user who promotes violence or hate.

However, her Twitter account was reinstated after billionaire Trump ally Elon Musk purchased the platform, now known as X, in 2022.

The court on Oct. 6 rejected an appeal by Loomer in her fourth unsuccessful lawsuit alleging Facebook and X conspired with advertisers to keep her from using their sites when she was running for Congress in the 2020 and 2022 elections.

The bans doomed her campaigns, she said in the suit.

"Social media is critical to campaigns, especially during COVID-19 restrictions that limited traditional campaigning methods like doorto-door canvassing and public events," her attorneys wrote.

A federal judge in California dismissed the suit, which relied on the Racketeer Influenced and Corrupt Organizations Act.

The San Francisco-based 9th U.S. Circuit Court of Appeals agreed with the dismissal, saying that Loomer had no plausible argument that the companies violated RICO.

“The operative complaint simply alleges that there was a RICO enterprise because the Defendants had the 'common goals of making money, acquiring influence over other enterprises and entities, and other pecuniary and non-pecuniary interests,’” the appeals court wrote. "In sum, the district court properly dismissed theamended complaint and denied leave to amend."

This article originally appeared on USA TODAY: Supreme Court rejects conservative activist Laura Loomer's bid to sue social media for banning her

Reporting by Maureen Groppe, USA TODAY / USA TODAY

USA TODAY Network via Reuters Connect