The Liberal premier has made no secret of her frustrations with Harper and his Conservative government, but says she's simply standing up for Ontario on pensions, infrastructure investments and climate change.
Wynne describes her relationship with Harper as difficult, and says it has deteriorated, but insists it's not personal on her part.
She again blasted Harper for refusing to meet the provincial premiers — a position she noted he repeated during Thursday's leaders' debate — and said Canadians need a prime minister who will work with the provinces.
Wynne wouldn't say if she thought her attacks on Harper could backfire if he is re-elected prime minister, and said she would try again to work with him if that's the outcome of the Oct. 19 vote.
Wynne weighed in with her criticisms of Harper on Day 1 of the federal campaign, saying his refusal of any federal help to create an Ontario pension plan was "petty" and "mean-spirited in a pretty big way."
Harper shot back by saying when he first became prime minister he was advised his best relations would be with premiers who were doing a good job in their own provinces.
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