U.S. President Barack Obama and Prime Minister Justin Trudeau ribbed each other on their countries' hockey successes in their remarks at the arrival ceremony for the official visit Thursday, but Twitter users called an offside over their facts.

Obama joked that Americans and Canadians share many things in common, but there will always be points of contention.

There are some things Canadians and Americans will never agree on: whose beer is better, who is better at hockey, Obama says <a href="https://twitter.com/hashtag/statevisit?src=hash">#statevisit</a> —@fitzpatrick_m

"Where's the Stanley Cup right now?" -Obama, qui rappelle que Chicago a la coupe. Trudeau: 'don't get me started'... sourire aux lèvres. —@Ydb

Some thought that prodding Canada on our teams' lack of Stanley Cup success cut a little too close.

Obama says American hockey is better than Canadian hockey.<br><br>In other news: first war declared between Canada and America since 1812. —@sierradean

And others pointed out a glaring problem with Obama touting the Chicago Blackhawks' dynasty as an example of American exceptionalism.

Obama says Blackhawks' Stanley Cup win proves US is better at hockey than Canada, but there are only 3 Americans on the team... <a href="https://twitter.com/hashtag/Canada?src=hash">#Canada</a> —@Nate_Norris

Trudeau himself pointed out that three of the Hawks' top players — Jonathan Toews, Duncan Keith and Patrick Sharp — are Canadian. But Trudeau erred here, as well.

I enjoyed PM Trudeau's Blackhawks comeback, but I have to deduct some points: Patrick Sharp currently plays for the Stars. <a href="https://twitter.com/hashtag/PMDC?src=hash">#PMDC</a> —@mattan81

Patrick Sharp no longer plays for the Blackhawks. He’s in Dallas.<br>but ANYWAY he won the Cup with them, so I GUESS.<a href="https://twitter.com/hashtag/PMDC?src=hash">#PMDC</a> —@cfhorgan

But if all that matters is where a team is based, well, that could pose a problem for future U.S.-Canada relations.