Texas Sen. Kay Bailey Hutchison has officially announced her 2010 campaign for governor.

Hutchison, who is challenging incumbent Gov. Rick Perry in a Republican primary on March 2, kicked off a five-day, 19-stop tour at her high school alma mater in La Marque, about 40 miles southeast of Houston.

Hutchison said that Perry, who succeeded George W. Bush as governor in 2000 and was elected in 2002 and 2006, is “trying to stay too long.” Texas does not have term limits for its governors and Perry is the longest-serving governor in state history.