Liberal Leader Stéphane Dion's approval rating has sunk to its lowest level yet, with nine of 10 Canadians saying they disapprove or are not sure of his performance as the head of the party, according to the latest Toronto Star/Angus Reid opinion poll.

Not since former Liberal leader John Turner bottomed out with a 14 per cent approval rating shortly after losing the 1988 election have things been so bad for the head of Canada's most successful political party. Just 10 per cent of those surveyed stand behind Dion's leadership, the poll shows, compared to 32 per cent for Prime Minister Stephen Harper.

What's worse is that the number of people who said they were unsure about Dion's performance has dropped from 46 per cent at the end of last summer to 30 per cent this month, meaning that Canadians are making up their minds about a leader who has had difficulties rallying his party behind him as well as communicating his party's positions to potential voters.

"What's really disheartening is it's almost as if everyone's made up their minds already," said the polling firm's Mario Canseco. "Those who actually have something to say about Dion are saying negative things."

The online poll of 1,004 Canadians is considered accurate to within 3.1 percentage points, 19 times in 20. More...