China, Russia and, to a lesser extent, Iran have sought to use state media outlets to turn the controversy over data centers in the United States into “a domestic fracture point,” according to a new analysis by Alethea, a threat intelligence company, which identified scores of articles and posts on social media this year.

These campaigns, whose impact on public opinion remains to be seen, have raised alarms in Washington, where A.I. is seen as a top issue heading into this year’s midterm elections.

The foreign efforts appear intended to stoke the debate over data centers that has united political figures across the political spectrum — from Senator Bernie Sanders of Vermont, a progressive, to Stephen K. Bannon, the erstwhile adviser to President Trump.

“Foreign actors aren’t manufacturing American debates over the future of A.I., they are exploiting them,” said Jessica Brandt, a former official with the Office of the Director of National Intelligence who tracked foreign influence efforts during the Biden administration.

The goal, she added, is to “deepen our divisions in order to dent our appeal and weaken us from within.”

Republicans and business lobbying groups have seized on the role of China, in particular, claiming that the country’s Communist Party wants to undercut American leadership in a field that the Chinese, too, hope to dominate. They argue that China’s propaganda is an effort to slow down American development.