The inflation debate could preview the next big shifts in Canadian politics

The most interesting battle of the 44th Parliament's early days has been the recurring back-and-forth between Finance Minister Chrystia Freeland and Conservative finance critic Pierre Poilievre.

This running debate between two of the most prominent figures in Canadian politics maps out some of the fault lines that might define the present and near-future of the national debate.

Once one of Stephen Harper's most enthusiastically combative lieutenants, Poilievre has spent the past two years cultivating an online following — even playing footsie with some of the Internet's conspiracy theorists.

This past spring, six months before the fall election, Erin O'Toole decided he didn't want Poilievre to be the Conservative Party's spokesperson on fiscal matters and shuffled him to another job. O'Toole's team insisted it wasn't a demotion — though it's not hard to imagine that Poilievre might have been a bit too edgy for the non-threatening and moderate campaign O'Toole ran this fall.

But Poilievre was returned to the position of "shadow finance minister" after O'Toole and the Conservatives stumbled to a disappointing election result in September. Poilievre now seems like something of a spiritual leader for the Conservative side.

Before the election, Poilievre enthusiastically attacked federal spending and the Bank of Canada's purchase of government bonds. He now points to this fall's inflation figures as vindication of his arguments. On Twitter, he has adopted the oh-so-clever hashtag of #Justinflation to underline his claim that the prime minister is to blame for recent price increases.

Poilievre also has taken to using the phrase "just inflation" during question period — barely skirting the rule against using another MP's proper name — and four other Conservative MPs joined him in doing so in the House on Tuesday.

Inflation has dominated questions from the Conservative side through the first week of the 44th Parliament. So Freeland was prepared when she and Poilievre faced each other directly last Thursday.

After Poilievre needled Freeland for acknowledging that inflation is a "crisis" and challenged her to admit that it's a "homegrown problem," Freeland stood and listed off numbers that suggest Canada's level of inflation is in line with the rest of the G20.

At her next opportunity, Freeland referred Poilievre to the words of a National Post columnist ("The Conservatives may not want to listen to me about inflation, but I suspect they read the National Post") who wrote that inflation is a "global phenomenon" and also described Poilievre as "charging out of his corner, arms wind-milling."

Poilievre tried again and Freeland challenged him to tell Canadians that he thinks a pandemic is a time for "austerity."

In her own way, Freeland is a good match for Poilievre — and each might define something about their respective sides.

An erudite former journalist, Freeland is one of the key figures of the Trudeau era. She was the Liberal leader's first star recruit nearly a decade ago, then the woman he chose to put front and centre against Donald Trump, and the deputy prime minister he needed after the bruising campaign of 2019. Now she is the first woman to be put in charge of federal fiscal policy.

Poilievre, who casts himself as a populist fighter, is also a keen student of rhetorical combat. He once said that his approach is based on an understanding of the minutiae of legislation and a mastery of "simple facts."