A suit filed by conservative pastors accuses Mayor Annise Parker of interfering with citizens' right to vote.
Longtime anti-LGBT activist Dave Wilson is angry the city won't heed his petition, which also demands businesses define 'gender' as one's birth-assigned sex.
The subpoenas have drawn much wrath from the right, but Mayor Annise Parker said she was not giving in to critics but serving the best interest of Houston.
After nine hours of testimony, the Houston City Council adopted the measure by a vote of 11-6.
Mayor Annise Parker contends a proposed ordinance will still protect trans residents from discrimination.
Mayor Annise Parker says this is the constitutional and right thing to do; meanwhile, Houston's county takes steps to protect LGBT prisoners.