State Sen. Donna Campbell, left, has filed a proposal to ask voters to amend the Texas constitution.
State Sen. Donna Campbell, left, has filed a proposal to ask voters to amend the Texas constitution. Ralph Barrera via The Associated Press Austin American-Statesman
State Sen. Donna Campbell, left, has filed a proposal to ask voters to amend the Texas constitution. Ralph Barrera via The Associated Press Austin American-Statesman