Dan Gattis was a Republican member of the Texas House of Representatives, formerly representing the 20th District from 2002 to 2010. His district was made up of Milam and part of Williamson County Gattis planned to run for State Senate in 2010 when State Senator Steve Ogden announced his retirement, but later withdrew from the race to spend more time with his family. Senator Ogden subsequently reconsidered his retirement and announced for re-election.