The websites have names like DC Weekly and Chicago Crier. They are filled with thousands of legitimate-looking stories, plucked from real news websites and rewritten by artificial intelligence. But BBC Trending has found that these sites are part of a wide-ranging operation designed to insert false stories into political debates, over Ukraine and now gradually shifting to the US election campaign. One of the people involved is John Dougan, a former Florida police officer now living in Moscow. Online evidence links him to the network of sites, which reference American cities and are populated by fake journalists. Experts believe they are part of a wide effort to influence American public opinion in advance of November’s presidential election.