The journalist who was among the first to report on the Trump-Russia dossier suspects many of the allegations made in former British spy Christopher Steele’s collection of memos are “likely false.”

Yahoo chief investigative reporter Michael Isikoff was one of the journalists who met with Steele during the 2016 campaign. On Sept. 23, 2016, he wrote an article about former Trump campaign foreign policy adviser Carter Page, which outlined how Page had attracted law enforcement’s attention for allegedly trying to establish back channels between the campaign and Russia and for discussing the lifting of sanctions with Moscow-linked officials. The article was frequently cited during congressional investigations into whether the Justice Department and FBI abused surveillance powers by gathering information on Page, a U.S. citizen, after obtaining warrants based on Steele’s unverified work.