he Arizona legislature has passed a bill requiring presidential candidates to submit birth certificates in order to get on the state’s election ballot.
Republican Governor Jan Brewer can opt whether to sign the bill into law.
A lingering "birther" conspiracy theory asserts US President Barack Obama was not born in the US and is thus ineligible to hold the office.
The bill’s Republican backers insist it is not aimed at Mr Obama. Arizona is the first to state to pass such a law.