The Progressive Conservatives say they'll call on Premier Kathleen Wynne and her predecessor Dalton McGuinty to testify about the controversial cancellation of two gas plants.
But Wynne and McGuinty don't have to testify before the all-party committee.
Both opposition parties are demanding new committee hearings once the legislature comes back next week.
The Liberals have been under fire for what the opposition says were politically-motivated cancellations of the gas plants, which will cost taxpayers at least $230 million.
