WASHINGTON, DC - JULY 15: Sen. Ted Cruz (R-TX) speaks about immigration during the DC March for Jobs in Upper Senate Park near Capitol Hill, on July 15, 2013 in Washington, DC. Conservative activists and supporters rallied against the Senate's immigration legislation and the impact illegal immigration has on reduced wages and employment opportunities for some Americans. (Photo by Drew Angerer/Getty Images)
AUSTIN, Texas (AP) - U.S. Sen. Ted Cruz has released his birth certificate amid concerns that his being born in Canada could derail a possible presidential run.
The document posted online Monday by The Dallas Morning News shows the tea party firebrand's birth in Calgary, Alberta, in 1970.
Cruz's mother is American and his father Cuban. They were working in Canada at the time.
Elected last year, Cruz has already angered Senate Democrats and some Republicans with his outspokenness.
He has fueled speculation about a White House run by making several visits to Iowa, which will open presidential primary voting ahead of the 2016 election.
Only natural-born American citizens can be president. Cruz's office has long maintained, though, that because his mother is an American, Cruz became a naturalized citizen at birth.
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The Associated Press