Jack Layton is warning Prime Minister Stephen Harper not to ignore the New Democrats.
"Yes, he won a majority. But he is facing the largest, most united opposition in 31 years," the federal NDP Leader told 2,500 delegates attending a convention of the Canadian Labour Congress on Wednesday.
It was Mr. Layton's first major speech since his party vaulted over the Liberals to become the Official Opposition after last week's federal election. New Democrats won 103 seats.
Mr. Layton accused Mr. Harper of ignoring a "brewing storm" of problems in pensions, casting himself as an ally with the provinces in strengthening the Canada and Quebec pension plans.
"It's the kind of practical approach that the New Democrat opposition will bring to the house each and every day," he said in the brisk speech.
"Stephen Harper is in power. We are going to take him on."