Sen. Ted Cruz Rafael (Ted) Edward CruzVideo of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral Sunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Democrat on Graham video urging people to 'use my words against me': 'Done' MORE (R-Texas) is slated to introduce legislation next week that would revoke the U.S. citizenship of anyone fighting or providing support to terrorist groups working to attack the United States.

Cruz said he is filing the Expatriate Terrorist Act in reaction to the threat posed by the Islamic State in Iraq and Syria (ISIS). It would provide another level of protection to prevent foreign fighters from re-entering the United States, he said.

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“Americans who choose to go to Syria or Iraq to fight with vicious ISIS terrorists are party to a terrorist organization committing horrific acts of violence, including beheading innocent American journalists who they have captured,” Cruz said in a statement.

“There can be no clearer renunciation of their citizenship in the United States, and we need to do everything we can to preempt any attempt on their part to re-enter our country and carry out further attacks on American civilians.”

Sen. Rand Paul (R-Ky.) gave support to a similar proposal in a Time magazine op-ed Thursday.

Cruz's bill would apply to those providing support only to foreign terrorist groups and would result in that person technically renouncing his citizenship "with the intent of supplanting his U.S. citizenship with loyalty to a terrorist organization."

The Pentagon believes about a dozen U.S. citizens are fighting with ISIS and 100 Americans are inside of Syria.

Cruz received his first legislative victory earlier this year when President Obama signed his bill into law that would prevent a U.N. ambassador from entering the United States if that ambassador was a known terrorist.

The bill was filed in reaction to Iran naming its ambassador to the U.N., based in New York, who had links to the group involved in the 1979 Iranian hostage crisis.