Background
Gambaro grew up in Saint Louis and graduated from Saint Louis University High School.
Gambaro grew up in Saint Louis and graduated from Saint Louis University High School.
He attended the United States Air Force Academy for two years and graduated from Saint Louis University in 1979.
He previously served in the Missouri House of Representatives where he represented a portion of South Saint Louis including The Hill and Dogtown neighborhoods. He is a Democrat. In 1998, Gambaro was elected State Representative, defeating incumbent Tom Bauer in the Democratic primary election. Gambaro was re-elected in 2000 and did not seek re-election in 2002.
He later served on the Saint Louis board of election commissioners.
In 2006, after several years out of elective office, Gambaro was an unsuccessful candidate for the 4th District Missouri State Senate seat being vacated by Pat Dougherty. The Democratic primary election was heavily contested, and no Republicans or third party candidates sought the seat.
Gambaro finished third in the race, behind political science instructor Jeff Smith and State Representative Yaphett El-Amin, but ahead of State Representative Amber Boykins, and former Saint Louis Alderman Kenny Jones. Governor Blunt appointed Gambaro to the Missouri State Board of Education in June 2007.