Rick Santorum appeared on Tony Perkins’s “Washington Watch” radio show yesterday to discuss national security threats from ISIS and Iran, but Perkins eventually moved the discussion to the “domestic threats” to the country: namely, gay marriage.

Perkins thanked Santorum for working with the Family Research Council on creating a short film about the dangers of marriage equality, which will be shown in participating churches on the Sunday before the Supreme Court hears oral arguments in Obergefell v. Hodges.

Santorum told Perkins that, for the first time ever in U.S. history, religious liberty is under assault from a new secular theocratic system: