After SCOTUS Ruling, Ted Cruz Vows Immigration Amendment

Outspoken lawmaker reacts to Supreme Court case.

Sen. Ted Cruz (R-Texas) speaks during the markup for the immigration reform bill May 9, 2013, in Washington, DC. (Win McNamee/Getty Images)

"I'll file amendment to immigration bill that permits states to require ID before registering voters," Cruz tweeted.

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In the wake of a Supreme Court ruling Monday, Sen. Ted Cruz, R-Texas, says he will seek to tweak the comprehensive immigration reform measure currently before the Senate to allow states to require proof of citizenship before a resident can register to vote.

"I'll file amendment to immigration bill that permits states to require ID before registering voters and close this hole in fed statutory law," Cruz said in a message on Twitter.

The court ruled 7-2 Monday that Arizona's proof-of-citizenship requirement was superseded by the National Voting Rights Act that simply requires applicants to affirm their legal status.

[READ: Biden Says GOP Senators Fear Cruz, Paul]

And while many pro-voter registration groups are applauding the decision as an affirmation that states that require proof of citizenship are in error, other analysts say the opinion, written by Justice Antonin Scalia, a conservative, opens the door for Arizona to re-write its law.

Cruz, a tea party favorite of Cuban descent, has said he is opposed to the immigration reform measure because it amounts to amnesty for illegal immigrants and does not do enough to secure the southern border. While it's unlikely Cruz's amendment would win approval in the Democratically-controlled Senate, it would add to the controversy surrounding the hot-button bill.

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