Judicial Watch, the right-wing legal group founded by conspiracy theorist Larry Klayman, has been pushing to conservative media its new claim that the terrorist group ISIS has set up camp just south of the U.S. border with Mexico.

This weekend, the Family Research Council’s Tony Perkins spoke with Tom Fitton, president of Judicial Watch, about the allegations, and Perkins announced that “authorities have confirmed” the group’s report about an ISIS base a few miles south of El Paso, Texas.

Actually, authorities have done exactly the opposite: The U.S. Department of State, the Department of Homeland Security, the U.S. Northern Command, the Texas Department of Public Safety, the El Paso County Sheriff’s Office and the Mexican government have all denied Judicial Watch’s report. Reporters who have visited the location of the supposed ISIS base have also found no evidence at all of it existing.

Fitton nonetheless told Perkins that Judicial Watch’s research is so reliable that the group actually recently prevented a terrorist attack from occurring in the U.S.

“There was going to be an imminent attack around September which we reported, I think it was averted as a result of our report,” Fitton said, before acknowledging that DHS and other agencies have denied his group’s account of an ISIS border camp.

According to Fitton, the government is only disputing Judicial Watch’s work is “because it gets in the way of the open borders agenda, it gets in the way of the amnesty agenda.”