A lot more illegal migrants are coming through the U.S. southern border, but there’s a smaller ratio of border officers at the northern border, Homan said, leading to fewer patrols on roads and waterways. He said this poses a “huge national security issue.”

Homan also said that during his 34-year career he’d seen “a lot” of “special interest aliens” from countries sponsoring terrorism trying to reach the U.S. from Canada. He said these types of migrants choose to cross from Canada because they can afford the higher costs, being backed financially, and they know there’s less border surveillance.

“So it’s an extreme national security vulnerability in the northern border and it’s one of the things I’ll tackle as soon as I’m in the White House,” said Homan, who hails from a town in upstate New York and owns a residence on the border.