After Conservative Leader Stephen Harper spent last week’s English and French debates fending off attacks from his four opponents, Tory support has slipped across the country in a broad range of categories, a new poll shows. The poll was conducted for The Globe and Mail and Montreal’s La Presse over the five days since the debates ended. Released Wednesday, it shows overall support dropping for the Conservatives and the Liberals since last month, with the other parties picking up small gains. The Tories are still in the lead, consistent with other polling. About 26 per cent of Canadians remain undecided.