She entered Parliament as Labour MP for West Bromwich in 1974. She became a deputy speaker in 1987. In 1992 she was elected Speaker, being the first woman ever to hold the job, and also the first person from the opposition to be given it. She stepped down in 2000, and resigned as an MP. She was succeeded by Michael Martin as speaker. After she stepped down she was made Baroness Boothroyd of Sandwell and sits in the House of Lords as a cross-bencher.