What were the four rivals Barbara Jordan had defeated?

Barbara Jordan, a prominent civil rights leader and politician, defeated several notable rivals during her political career. Among them were incumbent Congressman George H. Mahon in 1972, who had served for 48 years, as well as other challengers like former State Senator Lloyd Doggett. Her victories were significant milestones, as she became the first African American woman elected to the Texas Senate and the first Southern African American woman elected to the U.S. House of Representatives. Jordan's success against these rivals highlighted her influential role in American politics and her dedication to social justice.