Omar Aquino served as an aide under which retired U.S. Army Lieutenant Colonel, now Congresswoman?
Omar Aquino:  Previously, he served as an aide to Congresswoman Tammy Duckworth. Tammy Duckworth: Ladda Tammy Duckworth (born March 12, 1968) is an American politician and retired U.S. Army Lieutenant Colonel, serving as the junior United States Senator for Illinois since 2017.
Tammy Duckworth