By Ilya Shapiro, Senior Fellow In Constitutional Sudies and Editor-In-Chief, Cato Supreme Court Review As we head into a potential government shutdown over the funding of Obamacare, the iconoclastic junior senator from Texas — love him or hate him — continues to stride across the national stage. With his presidential aspirations as big as everything in his home state, by now many know what has never been a secret: Ted Cruz was born in Canada. (Full disclosure: I’m Canadian myself, with a green card. Also, Cruz has been a friend since his days representing Texas before the Supreme Court.) But...