As I stated in a previous post, the United States has multiple borders, not just the southwestern border. Thankfully, between the GOP hopefuls, they got this one, especially with the boomlet of end of the week policy innovations.
Donald Trump: build a wall, repeal birthright citizenship, and mass deportation. His 6 page plan is here.
Chris Christie (at a NH event): "At any moment, FedEx can tell you where that package is. It’s on the truck. It’s at the station. It’s on the airplane. Yet we let people come to this country with visas, and the minute they come in, we lose track of them. We need to have a system that tracks you from the moment you come in. " The New York Times said, "A FedEx spokeswoman declined to comment on Mr. Christie’s remarks." I guess the only question is does Christie favor tattooing a bar-code on every immigrant upon arrival as @kalhan has (totally facetiously) suggested, or should we just microchip everyone like our pet dogs and cats? Because neither of those suggestions could have Fourth Amendment, unreasonable search implications....
Scott Walker: Since Trump already called dibs on the wall on the Southwestern border, and Christie is addressing the issues of visa overstays with this Fedex plan, Walker decided to deal with the last frontier, the Canadian border. When asked by Meet the Press' Chuck Todd about the fixation on the southwestern border and the neglect of the northern border, Walker responded, "That is a legitimate issue of us to look at." North, south, and interior. Check. Check. Check.