He ran for the Ontario legislature in the
1987 provincial election, but finished almost 9,000 votes behind the
Liberal candidate,
Gord Miller, in the southwestern Ontario riding of
Norfolk. The NDP won a majority government in the
1990 provincial election, and Jamison was elected over Miller by almost 4,000 votes in a rematch from 1987. He was a
parliamentary assistant to the
Minister of Industry, Trade and Technology and the
Minister of Economic Development and Trade over the next five years. The NDP were defeated in the
1995 provincial election, and Jamison finished third against the
Progressive Conservative Toby Barrett in his bid for re-election. Jamison left the NDP to join the Liberal Party before the
1999 provincial election, and endorsed the Liberal candidate in the redistributed riding of
Haldimand—Norfolk—Brant. He ran for municipal councillor in
Haldimand County in 2000, but was defeated. ==References==