President Fox’s vision for an open border is a vision I can embrace” -—Rick Perry
"President Fox’s vision for an open border is a vision I embrace, as long as we demonstrate the will to address the obstacles to it. An open border means poverty has given way to opportunity, and Mexico’s citizens do not feel compelled to cross the border to find that opportunity."
So, yeah, in happy future fun time, when Mexico is prosperous and there's no need for poor Mexicans to cross the border, we can live like Canada and Minnesota.