It was in 2003 when Republicans took the majority of the Texas House of Representatives. The GOP had already won the Governor's seat and control of the Senate. The House was the last piece of the state government to secure the trifecta that’s been in place ever since. Controlling all three vital centers of state power makes it much easier for the dominate party to pursue its agenda and essentially operate without aggressive oversight. This was not unlike how the Democrats ran Texas when they had a power trifecta during their era of single party rule which ended in 1994.