It was midnight in the Texas Capitol, and everyone was waiting for Democratic Sen. Carol Alvarado. They wanted to know if she'd filibuster H.B. 4, the Donald Trump-pushed gerrymandering legislation that aims to gain five more Republican seats in the U.S. Congress. The state Senate had just reconvened after a three-hour dinner break called by Lt. Gov. Dan Patrick. Alvarado, who'd filibustered for over 15 hours in opposition to a voter-suppression bill in 2021, was armed with comfortable sneakers,