He served as a New Democratic member of the Legislative Assembly of Ontario from 1990 to 1995 representing the southwestern provincial riding of Windsor—Sandwich.
Dadamo worked in radio as a broadcaster for CKLW/CKWW in Windsor, CKCK in Regina, Saskatchewan and CHNL in Kamloops, British Columbia between 1973 and 1989.
Dadamo ran for the Ontario legislature in the 1987 provincial election, finishing second to incumbent Liberal Bill Wrye in the riding of Windsor—Sandwich by 2,459 votes.
[1] The NDP won a majority government in the 1990 provincial election, and Dadamo defeated Wrye by 4,145 votes in a rematch from 1987.
[3] During his time in office, Dadamo sponsored three private member's bills; the first sought to give workers up to one year's notice of an impending factory shutdown,[4] the second was for a property tax exemption on a new arena being built in Windsor,[5] and the third would have restricted vendors from sidewalks in Windsor.