President Trump has repeatedly described the U.S.-Canada border as an "artificially drawn line." But experts say just because it was man-made doesn't mean it's not legitimate.

President Donald Trump called the U.S.-Canada border an “artificial line” while also declining to say whether Canada would lean right or left if it became a state.

Oval Office addresses are usually designed to speak to the widest audience possible - to rally the nation rather than divide it, to build as broad a coalition as possible for the task ahead.