Polls have done an about-face in the region, which experts say is fuelled by a historic lean toward the party amid threats from the outside, while the longstanding desire for change has been satiated by a new Liberal leader.

Most recent polling found the Liberal Party has a 21 percentage-point lead in the region, which includes Prince Edward Island, Newfoundland and Labrador, Nova Scotia, and New Brunswick. Nationally, the Conservatives and the Liberals are neck-and-neck.

The Liberals had fallen behind in popularity over the past two years. The party currently holds 24 of 32 seats across the Atlantic provinces, a decline from the 32 seats it captured in the 2015 election.