WATCH: Dianne Feinstein casts her final vote on Senate floor

(NEXSTAR/AP) – U.S. Senator Dianne Feinstein, a trailblazing politician and longtime champion of liberal causes, died Thursday night at her home in Washington, D.C., her office confirmed Friday. She was 90.The California senator had been in failing health, though she had long dismissed any suggestions that she retire, instead revealing earlier this year that she would not seek another term.Earlier on Thursday, Feinstein made what would ultimately be her final vote on the Senate floor,