Jonathan Brostoff

In 2014, Brostoff defeated Milwaukee County Board Chairwoman Marina Dimitrijevic (endorsed by Milwaukee's Mayor Tom Barrett and Congresswoman Gwen Moore) in the primary for the 19th Assembly District, as well as defense attorney Dan Adams (supported by Milwaukee County Executive Chris Abele), and labor lawyer Sara Geenen. He received 3,065 (35%) to Dimitrijevic's 2,817 (32%), Adams' 2,020 (23%) and Geenen's 796 (9%).

His opponent in the November 2014 general election, which includes the central campus of his alma mater the University of Wisconsin-Milwaukee, was Joe Klein of the United States Pirate Party. Brostoff was considered the favorite to win the seat. On November 4, 2014, Brostoff was elected to the Wisconsin State Assembly, with 18,054 (82.1%) of the vote, to Klein's 3,938 (17.9%).

Born in Milwaukee, Wisconsin, Brostoff is the son of Alan and Phyllis Brostoff. His father is a retired attorney, mediator and arbitrator; his mother, a social worker and businesswoman in the home health care industry. He worked and volunteered at area non-profit organizations since the age of 14, and after high school did a stint with AmeriCorps. He attended the University of Wisconsin–Milwaukee, where he met and married Diana Vang-Brostoff and served as co-President of UWM's Campus Organization for Israel. He graduated with a degree in political science, having worked as an aide for U.S. Senator Tom Harkin in Washington, D.C.

Jonathan Brostoff (born September 25, 1983) is an American Democratic legislator from Milwaukee, Wisconsin. He represents the 19th district in the Wisconsin State Assembly. He succeeded fellow Democrat Jon Richards.