When Jennifer Wexton rose Thursday to speak on the House floor, something she has done countless times before, the congresswoman used a voice she thought was gone forever.

After a rare neurological disorder robbed her of her ability to speak clearly, Wexton has been given her voice back with the help of a powerful artificial intelligence program, allowing the Virginia Democrat to make a clone of her speaking voice using old recordings of speeches and appearances she made as a congresswoman. She used that program to deliver what is believed to be the first speech on the House floor ever given via a voice cloned by artificial intelligence.