The U.S. would be prohibited from giving up its control over the body that governs internet domain names without direct approval from Congress under legislation introduced Wednesday by Sen. Ted Cruz (R-Texas) and Rep. Sean Duffy (R-Wis.).

“The Obama administration is months away from deciding whether the United States Government will continue to provide oversight over core functions of the Internet and protect it from authoritarian regimes that view the Internet as a way to increase their influence and suppress freedom of speech,” Cruz said today in a statement. “This issue threatens not only our personal liberties, but also our national security.”

The National Telecommunications and Information Administration, an agency housed in the Commerce Department, has a contract to run the Internet Assigned Number Authority, or IANA, which controls the domain names that internet service providers use to traffic data. Since 2014, the global community has been working on a plan that would establish a multistakeholder body to run IANA so that one country doesn’t exert control over the internet.

NTIA has a target date of June 10 to determine whether the current transition plan meets its requirements. The agency’s contract with IANA expires on Sep. 30.

“President Obama wants to hand over the keys to the Internet to countries like China and Russia,” Duffy said in a statement. “This is reckless and absurd. The governments of these countries do not value free speech.”

Sen. Marco Rubio (R-Fla.) has also said he wants to delay the transition to ensure nothing goes wrong, and fellow Republican Sen. Ron Johnson (Wis.) has said he’s worried about rushing the transition.

The measures introduced by Cruz and Duffy are backed by groups like Tech Knowledge and Tech Freedom.

“The Internet is far too important to rush this transition,” Berin Szóka, president of TechFreedom, said in a statement. “Unfortunately, the Administration has viewed this transition as a cheap way to recover the global political credibility it lost because of the Snowden revelations and its own stubborn resistance to real surveillance reforms.”