WASHINGTON (AP) — As Tammy Duckworth sees it, her path to Congress began when she awoke in the fall of 2004 at Walter Reed Army Medical Center. She was missing both of her legs and faced the prospect of losing her right arm.

Months of agonizing therapy lay ahead. As the highest-ranking double amputee in the ward, Maj. Duckworth became the go-to person for soldiers complaining of substandard care and bureaucratic ambivalence.

Soon, she was pleading their cases to federal lawmakers, including her state's two U.S. senators at the time — Democrats Dick Durbin and Barack Obama of Illinois. Obama arranged for her to testify at congressional hearings. Durbin encouraged her to run for office.