The United States’ Patriot Act expired Monday after the Senate failed to reach a deal before midnight. The National Security Agency no longer has the power to collect the phone records of American citizens in bulk.

Speaking in Congress on Sunday, Republican Sen. Rand Paul delayed the passage of the U.S.A. Freedom Act, which would have allowed the government to keep many of the powers outlined in the Patriot Act.

Senator Paul said, “We are not collecting of spies. We are not collecting the information of terrorists. We are collecting all American citizens’ records all of the time. This is what we fought the Revolution over. Are we going to so blithely give up our freedom?”

The Patriot Act has long been controversial, especially since nsa contractor Edward Snowden accused the nsa of collecting phone records of Americans in 2013. The act was introduced after the terrorist attacks of 9/11 in 2001.

The U.S.A. Freedom Act will be debated in Congress next week. U.S. officials warn that the brief lapse in security efforts could be dangerous as the country faces persistent extremist threats, while libertarians claim that mass surveillance is unconstitutional and celebrate the Patriot Act’s demise.