Sen. Tammy Duckworth has just blazed one more trail: She's the first U.S. Senator to give birth while in office.
With the arrival of a baby girl named Maile, Duckworth becomes one of just 10 women to give birth while serving in Congress. Duckworth, 50, had her first child in 2014, while she was a member of the House of Representatives. The senator lost both of her legs in the Iraq War.