The long-running influence campaign known as Spamouflage is active ahead of the midterm elections, with accounts likely linked to China posing as U.S. voters and posting divisive content about U.S. politics, social issues and the elections, analysts say.

In a blog posted on Friday, Graphika, a New York-based firm that tracks online networks, said it had identified Spamouflage-linked activity on X that closely resembles tactics documented in 2024 ahead of the U.S. presidential election.

“The accounts post content questioning election integrity and the legitimacy of U.S. democracy,” the Graphika blog said.

Intelligence and national security officials have long warned that Russia, China and Iran have run online influence operations targeting U.S. voters ahead of elections. China, rather than supporting one presidential candidate over the other, has focused its efforts on undermining confidence in elections, voting and the U.S.…