Scott Walker: Building wall along northern border with Canada "a legitimate issue for us to look at"

WASHINGTON — Republican presidential candidate Scott Walker says that building a wall along the country's northern border with Canada is a legitimate issue that merits further review.

Republican candidates have generally taken a get-tough approach on deterring illegal immigration, but they usually focus on the border with Mexico.

The Wisconsin governor was asked whether he wanted to build a wall on the northern border, too, during an interview Sunday, August 30th on NBC's "Meet the Press."

Walker says law enforcement officials in New Hampshire brought up the topic of building a wall along the U.S.-Canadian border during a recent town hall meeting. He says they raised some legitimate concerns, so it's a "legitimate issue for us to look at."

The U.S.-Canada boundary is the longest international border in the world at 5,525 miles long.