Will there be a push to build a wall on the northern border as well? Citizens of Mexico can fly to Canada without a visa.
More than half of the illegal immigrants arrested last year as they traveled from Canada to the U.S. were Mexican citizens, according to newly released government data.
Remember what happened in 2016 campaign when Scott Walker suggested a wall with Canada?
The GOP candidate said voters have raised concerns to him about terrorists entering US from north, as immigration has become hot-button Republican topic
The largest single source of visa overstays in the US? Canadians staying longer than the six months allowed.