He had supported John Diefenbaker's Progressive Conservatives for a time at the federal level, but was not directly involved in partisan politics, and does not appear to have contemplated running for public office.
He won the party's nomination over Archie Nabess,[4] and defeated independent candidate Blain Johnston by sixteen votes (confirmed by a recount) in the general election.
He was easily re-elected in the province's general election of 1969 (held in June), defeating Progressive Conservative Thomas Farrell by almost a thousand votes in Thompson.
Some claim that he was a committed Public Works Minister, who often conducted personal inspections of road renewal projects and demanded efficient results.
On February 17, 1971, Borowski made derogatory comments about aboriginal Canadians, veterans and people with disabilities during an address to NDP supporters in Winnipeg.
Former party leader Russell Paulley openly criticized his remarks, and Borowski was nearly dropped from cabinet before agreeing to a public apology.
Borowski finally left the NDP caucus on June 25, 1972, arguing that the Schreyer government's new film censorship board would not adequately prevent pornographic movies from entering the province.
In the provincial election of 1973, Borowski ran as an independent candidate in the north-end Winnipeg riding of Point Douglas, and lost to NDP incumbent Donald Malinowski by more than 2,500 votes.
Shortly before the 1977 provincial election, Borowski placed a large advertisement in the Winnipeg Free Press which purported to describe the views of several MLAs on the subject of abortion.
The public effect of this demonstration was blunted somewhat when it was pointed out that he had outlived contemporary IRA hunger-striker Bobby Sands, who in 1981 had starved to death in Maze Prison after a hunger strike that lasted only 66 days.
In August 2004, author Lianne Laurence published a biography entitled Borowski: A Canadian Paradox, funded largely by donations from the anti-abortion community in Canada.