Maxime Bernier is maintaining his lead in the Conservative leadership race.

According to the latest iPolitics CPC Leadership Tracker, powered by Mainstreet Research, 33.63 per cent of Conservative party members who have voted already in the leadership contest have marked Bernier as their first choice.

Mainstreet reached 12,170 Conservative Party of Canada members from May 3-7 and found, with a margin of error of +/- 0.87 per cent, 19 times out of 20, that Bernier is holding a steady lead in the race, followed by Andrew Scheer and Erin O’Toole.

Another 19.24 per cent of Conservative members polled who have already voted chose Scheer as their first choice; 11.87 per cent chose O’Toole.

Among Conservative party members who have not voted — and including those still undecided — Bernier is still leading at 26.26 per cent.

President of Mainstreet Research Quito Maggi said if anyone other than Bernier has a shot at winning the race, it may actually be O’Toole — not Scheer.

Maggi said he also thinks O’Toole has more room to grow than Scheer.

“Where do the progressive conservative votes land? They’re not going to land with Scheer because he’s social conservative,” said Maggi, who suggested Lisa Raitt and Michael Chong’s second or third choice supporters will land with O’Toole.

The iPolitics CPC Leadership Tracker, powered by Mainstreet, will be tracking the Conservative leadership race until members pick the next leader on May 27. For additional information on methodology and to subscribe to in-depth updates, click here.