Sen. Rand Paul (R-Ky.) has filed a lawsuit against the NSA’s domestic spying program.

The suit names President Barack Obama, James R. Clapper, Gen. Keith Alexander and James Comey. It’s one of the largest class action lawsuits in history, with more than 350,000 plaintiffs already.

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Paul joined Sean Hannity tonight to discuss the suit. He said the class action lawsuit could include anyone who has a cellphone or land line. “It’s really virtually everyone in the United States, and I think that illustrates the problem,” he said.

The Kentucky senator alleges that the program violates the Fourth Amendment.

Is the NSA Spying on Congress?

Watch the full interview above.