Fox & Friends' tosses around idea of US-Canada border wall. What has Trump said about it?

"Fox & Friends" anchor Jillian Mele suggested Friday that perhaps President Donald Trump should consider building a northern U.S. border wall to separate the United States from Canada.

Mele cited Canadian Prime Minister Justin Trudeau's latest domestic proposal concerning Canada welcoming what she referred to as "reformed terrorists" into their country.

"President Trump might want to think about a northern border wall if the Canadian Prime Minister Justin Trudeau gets his way," Mele began.

"Get this, Trudeau says he welcomes reformed terrorists back into his country," Mele said, and played a video of Trudeau discussing the new policy.

Trudeau, in a CTV interview set to air Dec. 29, said that a reformed jihadi could be "an extraordinarily powerful voice for preventing radicalization" and detailed plans he has to reintegrate Canadian citizens who are reformed terrorists into the general populace.

After playing the video, Mele added, "One Canadian group called Project Someone receives hundreds of thousands of dollars through federal funding to de-radicalize Jihadists through art and poetry."

Fox & Friends Floats 'Northern Border Wall' pic.twitter.com/YL0asQMY8e

— Jon Levine (@LevineJonathan) December 22, 2017

Has Trump ever discussed a northern border wall before?

President Donald Trump addressed a northern border wall during a 2016 presidential debate and dismissed the notion entirely.

After a moderator asked Trump why he was so keen to erect a southern border wall and not a northern border wall, then-candidate Trump answered succinctly.

"U.S. officials have warned that it is the Canadian border which is the most significant threat,'' the moderator asked. "You have said that you will not build a wall in Canada ... Isn't that like closing the front door, and leaving the back door open?"

Trump answered, "With Canada, you're talking about a massively long piece. You're talking about a border that would be about four times longer."

"It would be very, very hard to do — and it is not our biggest problem," he added. "I don't care what anyone says. It is not our big problem."