OTTAWA — Housing Minister Sean Fraser is asking around 140 municipalities to speak out about his Conservative opponent’s pledge to cut a federal housing program, a promise which one mayor says has raised questions about its impact on existing deals. 

Conservative Leader Pierre Poilievre, who has dominated the Liberals in public opinion polls for more than a year, announced last week that if Canadians were to elect his party, he would tackle housing affordability by slashing the GST on home purchases under $1 million.