FILE - In this July 27, 2011, file photo, Texas Gov. Rick Perry speaks at a ceremonial bill signing for a new tort reform measure in Houston. According to Perry spokesman Mark Miner, the Texas governor will announce on Saturday, Aug. 13, that he is running for president. (AP Photo/Pat Sullivan, File) The Associated PressAUSTIN, Texas (AP) — Texas Gov. Rick Perry is running for president.That's the word from Perry spokesman Mark Miner.Miner is telling The Associated Press that Perry will announce his intentions to run for the GOP nomination on Saturday as he visits early primary states of South Carolina and New Hampshire.Perry's candidacy is likely to shake the GOP field.The governor's announcement that he's entering the race will come two days after a debate in Iowa and on the same day that his rivals participate in a test vote in the leadoff caucus state.