He represented the electoral district of Richmond in the Nova Scotia House of Assembly from 1981 to 1988.
[3] MacIsaac entered provincial politics in the 1981 election, defeating Liberal incumbent John E. LeBrun by 352 votes in the Richmond riding.
[4] He was re-elected in the 1984 election, defeating Liberal Richie Mann by 472 votes.
[5] On February 5, 1988, MacIsaac was found guilty of nine counts of fraud, forgery and using forged receipts to justify more than $10,000 in claims on his MLA expense accounts, and was kicked out of the Progressive Conservative caucus.
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