EXCLUSIVE — The Cato Institute has sued the Biden administration for records of possible surveillance violations as Congress debates reauthorizing a crucial statute.

Section 702 of the Foreign Intelligence Surveillance Act, or FISA, will expire on April 19 unless renewed by Congress, and a key question is whether warrants should be required to obtain data on citizens using the act. This is being hotly debated on Capitol Hill, but all parties are operating without knowledge of possible past violations of the act by the FBI, CIA, or National Security Agency.