Kathleen Wynne needs to go.

A new Mainstreet/Postmedia poll paints a grim electoral picture for the Liberals in 2018, with 58% of Ontarians insisting the premier should resign. Of Toronto respondents alone, 67% want her out and 62% in the GTA have had enough of her.

“With the next Ontario election just a little more than 18 months away, Kathleen Wynne and the Ontario Liberals continue to plumb new depths as they now trail both the Patrick Brown-led PCs and the Andrea Horwath-led NDP,” said Quito Maggi, president of Mainstreet Research.

“Wynne’s approvals continue to drive down those numbers as her approval is now just 15% compared to 67% who disapprove, including 30% who strongly disapprove.”

The latest Liberal scandal, however, may be the last straw the public can handle, according to the poll.

The OPP laid bribery charges, alleging two Liberal insiders, including the former deputy chief of staff to Wynne, offered a job or appointment to a former Liberal candidate in Sudbury in exchange for him stepping aside. Wynne has maintained there was no bribe and that she wasn’t involved.

None of the allegations have been tested in court.

Still, the poll found that 53% believe she may have been involved in the case.

“The really, really bad news for Ontario Liberals is that 59% of Ontario voters are following the recent charges against the Ontario Liberal Party staff and operatives, including 42% either very or somewhat closely,” said Maggi. “Almost six in 10 people — 58% — said the premier should resign compared to less than two in 10 — or 17% — who said she should not. A quarter of Ontarians were not sure whether the premier should resign or not.”

On the flipside, NDP Leader Andrea Horwath is leading approval ratings at 59%, including 26% strongly, and just 30% disapproval — with 17% strongly disapproving. Ontario PC leader Patrick Brown continues to make gains in approval at 51%, including 23% strongly approving. His disapproval matches Horwath at 30%, but just 9% strongly disapprove of him.

“The lead in Eastern Canada of 20 points over the Liberals (48% to 28%) could point to closer-than-expected results in Ottawa-Vanier where star candidate Andre Marin is running for the Brown-led PCs,” said Maggi.

The poll of 2,524 respondents was conducted Nov. 2 and has a 1.95% margin of error, 19 times out of 20.

jyuen@postmedia.com