Texas Gov. Rick Perry waves to the crowd after speaking at an anti-abortion rally on the Capitol steps in Austin on Jan. 23, 2010. Jack Plunkett/AP hide caption

itoggle caption Jack Plunkett/AP

Mike Toomey (foreground), former chief of staff to Texas Gov. Rick Perry, watches primary election returns with other staffers in Austin in 2006. Harry Cabluck/AP hide caption

itoggle caption Harry Cabluck/AP

Cattle use a tree for shade near Canadian, Texas, in late July, with temperatures rising above 100 degrees. A severe drought has caused shortages of grass, hay and water in most of Texas, forcing ranchers to thin their herds or risk losing their cattle to the drought. Scott Olson/Getty Images hide caption

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Republican presidential candidate Texas Gov. Rick Perry meets with business leaders at a lunch in Dubuque, Iowa, on Tuesday. Charles Dharapak/AP hide caption

itoggle caption Charles Dharapak/AP

Texas Gov. Rick Perry speaks at the Texas Education Agency Administrators' Midwinter Conference in Austin, Texas, in 2001. Deborah Cannon/AP hide caption

itoggle caption Deborah Cannon/AP

A law enforcement official stands by as Polygamist sect leader Warren Jeffs, left, arrives at the Tom Green County Courthouse on Thursday in San Angelo, Texas. Jeffs' much-anticipated Texas trial began on Thursday, with prosecutors claiming he sexually assaulted girls he manipulated into "spiritual marriage," and defense attorneys countering that their client's religious freedoms were trampled. Tony Gutierrez/AP hide caption

itoggle caption Tony Gutierrez/AP

Edmund "Ted" Carpenter on a ship from a Greenland expedition in the 1990s. Adelaide de Menil hide caption

itoggle caption Adelaide de Menil

Humberto Leal Jr., a Mexican citizen, has been on death row since 1995 for the rape and bludgeoning of a 16-year-old San Antonio girl. He's slated to be executed in three weeks. But the Mexican government says he wasn't informed of his rights. Courtsey of San Antonio Express-News hide caption

itoggle caption Courtsey of San Antonio Express-News