Rick Perry calls evolution a "theory that's out there." He also apparently is not aware of the 1987 Supreme Court ruling that prohibits teaching of creationism in public schools, even in Texas.
For the record, evolution is a fact. It is supported by over 200 years of careful observation of the geological and biological evidence, by thousands of scientists. The word "theory" does not belong in front of the word evolution. We don't speak of the "theory" that the earth and other planets revolve around the sun, or the "theory" that matter is made up of atoms, or the "theory" that the heart pumps blood through the circulatory system. Evolution is as well established a fact as all of these other "theories."