He worked as a high school history teacher before entering political life.
[2] Wiseman ran for the Ontario legislature in the 1987 provincial election, and finished third behind Liberal Norah Stoner and a Progressive Conservative candidate in the Greater Toronto Area riding of Durham West.
In 1992, Wiseman and fellow Durham MPP Drummond White became involved in a minor controversy when it was found they were billing taxpayers for the cost of renting a shared apartment in Toronto.
[8] In the 1995 provincial election, Wiseman finished third in Durham West, falling almost 20,000 votes behind Progressive Conservative Janet Ecker.
[9] He stood for office again in the provincial election of 1999 for the redistributed riding of Pickering—Ajax—Uxbridge, but received only 2,814 votes—and again lost to Janet Ecker by almost 20,000 votes.