Texas senators are wrapping up debate on sweeping abortion restrictions and are getting ready to vote.
Senators began making final statements Friday night, after protesters briefly interrupted proceedings.
Republicans are expected to pass the bill. But Democrats sought to soften it and enter into the legislative record material that could help in a court battle.
Democrats say the restrictions are unconstitutional.
The Senate's debate took place between a packed gallery of demonstrators, with anti-abortion activists wearing blue and abortion-rights supporters wearing orange.
Four women who tried to chain themselves to a railing in the gallery were arrested. One woman was successful in chaining herself, prompting a 10-minute recess.
When debate resumed, protesters began loudly singing, "Give choice a chance." Lt. Gov. David Dewhurst told officers to remove them.