The Arizona Legislature approved a bill Thursday night that would require presidential candidates to prove they are U.S. citizens before their names could be placed on a state ballot.
The so-called "birther bill" got final approval by a vote of 40 to 16 in the state House, according to the website for the Arizona State Legislature.
The bill's author, Arizona State Rep. Carl Seel, a Republican, has repeatedly said the bill is not targeted at President Barack Obama. "It's not about that," Seel said. "It's about future elections and maintaining the integrity of the Constitution."
The bill still needs to be signed by GOP Arizona Gov. Jan Brewer.