Freshman congressmen tend to have little say in the national congress, much less a state congress. If they don't follow the party lines then they don't get funded for their next election. Did anyone watch that KVUE documentary about the Texas legislature where they videotaped congressmen reaching over to someone else's desk and pushing the vote buttons? Pretty much everyone votes on party lines. The Texas legislature might as well just be 2 people. 1 Republican, 1 Democrat and have them run around desks pushing the vote buttons for their parties.