When Trudeau met Cruz: How Canada's PM once debated the Iowa caucus winner

Here's a lesser-known connection betweenthe winner of this year's first U.S. presidential contest and the home and native land of his birth:Canada's prime minister recalls debatingTed Cruz.

The Calgary-born, Texas-bred senator whostormed out of the gate Monday with a win inIowa's Republican caucuseswasoncea stellar university debater, ranked No. 1 in the U.S.

Cruz's opponentsincluded a contemporary from Montreal a prime minister's son and prime-minister-to-be who decided to getinvolvedwith the debate club at the urging of friendsat McGill University.

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Justin Trudeau first publicly referred to that old encounter during a speech early last year when he was still leader of Canada's third party, and the senator had yet to announce his presidential bid.

Trudeautolda group of fellow McGill alumni that he'd dabbled indebating and had once gone up against Cruz in a tournament at Yale, adding dryly: "He hasn't changed very much."

Heelaborated slightly in an interview with The Canadian Press last June.By then, Cruz had announced his presidential bid but Trudeau was still in opposition.

While thedetails are a bit hazy, Trudeau recalls an opponent who cameprepared to dominate and, apparently,Cruz did.

''If I recall correctly it was about an obscure monetary policy element that he had done an awful lot of research on," Trudeau said inthat pre-election interview.

"His poor opposition had no real capacity to rebut. It was a focus very much on winning the debate, rather than on any sort of fair chance to have a good and robust debate. But that's the way university debating was played at that particular moment.''

Cruz also squared off against top Obama aide

If Trudeau lost to Cruz, he wasn't alone.

Before embarking on a law career where he argued nine cases before the U.S. Supreme Court,Cruzwas the starofPrinceton's legendary debate team.Hewas not only the 1992 U.S. college debater of the year, but his team was also ranked No. 1.

A New York Times profile describes an aggressive debating style thatoccasionally grated on judges, but ultimately earnedCruznumerous victories still commemorated on aplaque at Princeton.

Alas, visual evidence of that Cruz-Trudeau encounter appears lost to history.

When asked, neither Trudeau, his McGill friend Gerald Butts nor the debate clubs at Yale, McGill,and Princeton have video of thatclashbetween future political heavyweights.

In his autobiography, Cruzdescribed how his obsession with debating temporarily hurt his grades. He exasperated his teammate-and-roommate, forcing him to spend hours analyzingminute details ofeach contest.

They'd get home at midnight from a tournament andthen: "I insisted that David (Panton) and I go up to our room, sit down, and assess our performance so we could learn from our mistakes,"Cruz writes in "A Time For Truth."

"We learned from these discussions, which would extend till three or four in the morning, which would often prompt David to protest, 'Enough already! This is madness.' But the madness paid off."

An ex-aide to President Barack Obama concurs: Cruz was tough competition.

"He was at Princeton, I was at Yale. So we used to debate pretty much every week," Obama's ex-economic adviser Austan Goolsbee told Fox last week.

"He's a very, very good debater. Now the world knows that."

After watching the Texas firebrand in a Republican presidential debatelast month, Butts sent a nod to Goolsbee via tweet: "Cruz's debating style is exactly the same as it was 25 years ago."