Progressive Conservative Leader Tim Hudak has an event in Ottawa, N-D-P Leader Andrea Horwath visits Welland, Port Colborne, Niagara Falls and St. Catharines, while Liberal Premier Kathleen Wynne has two stops in Toronto.
On the campaign trail Wednesday, Wynne said if Hudak wins the most seats on June 12 but falls short of a majority, she'll do what she can to make sure a minority government functions.
But she didn't have a clear answer when asked repeatedly whether she would be willing to team up with the NDP if a minority Tory government is short-lived.
Hudak called Wynne's comments that she would let the winning party form a government an "encouraging change" but questioned her motivation.
He suggested Wynne was concerned about a public uproar if she clung to power after losing the election.
Hudak said if the Tories form a government, he would "move immediately" to bring in a mini-budget, but wouldn't say when he would call back the legislature.
Horwath sought to clearly distinguish herself from her political opponents, saying repeatedly that her party's plan for the province was different from those of the Liberals and Tories.
She said her party's priorities include reducing auto insurance rates by up to 15 per cent, cutting ER wait times and rewarding employers with tax credits when new jobs are created.