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X appeals to 5th Circuit to revive antitrust lawsuit after March dismissal by Texas judge

8/7/2026

A 5th Circuit brief filed by X asks the appeals court to reverse US District Judge Jane Boyle's March ruling that threw out the company's antitrust lawsuit against advertisers, with Elon Musk's platform calling the alleged conduct "an unusually brazen group boycott." The filing arrived one week after X settled with the World Federation of Advertisers, the first defendant named in the original case.

A 5th Circuit decision on whether the remaining claims can proceed is the next milestone to watch.

The argument X is making X characterized itself in the brief as "the direct victim" of the alleged boycott and argued that no valid reason exists to bar its effort to recover what it called "massive economic losses." The company said the alleged misconduct has drawn scrutiny from regulators and Congress, a point it raised to support why the case should move forward.

No dollar amount was attached to those claimed losses.

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