Difference Maker – U.S. Sen. Tom Harkin

S1, E2: U.S. Sen. Tom Harkin —  Retired U.S. Sen. Tom Harkin is a former Navy jet pilot, a lawyer, who served as a United States Senator from Iowa from 1985 to 2015. He was the chief sponsor of the 1990 Americans with Disabilities Act, the landmark legislation that protects the civil rights of more than 54 million Americans with physical and mental disabilities.