WATCH: John Oliver explains why Donald Trump's Mexican Wall is a 'terrible idea'
John Oliver used his HBO platform to tackle Donald Trump's controversial plan to build a wall along the entire U.S.-Mexico border.
Using close to 20 minutes of airtime on Last Week Tonight on Sunday, the TV host painstakingly deconstructed one of Trump's signature policy proposals: a border wall.
Oliver addressed everything from cost and materials to practicality of location to the presidential hopeful's empty promise to get Mexico to cover the cost.
"Yes, Donald Trump wants to build a wall on the U.S.-Mexican border," Oliver said, "and based on his tone, he wants to f*** that wall."
But Oliver didn't just want to make jokes. He noted that the wall is "one of the few policy proposals Trump has talked about in detail," as he set about dismantling it.
"Instead of mocking it or dismissing it out of hand, tonight, let's take a serious proposal by a serious presidential candidate seriously," Oliver said.
"First, let's put aside the potential racism and xenophobia involved here — we can come back to that later." the British-born presenter started. "And instead, let's focus on the practicality of whether and how it can actually be done."
But, as Oliver pointed out, there are a lot of problems with Trump’s proposal. The wall is expensive, would require relocating hundreds of families who live in and around the frontier towns, and it can’t even be built on the actual border.