Following the news that a high-ranking Justice Department attorney, Liz Oyer, was seemingly fired for opposing the restoration of Mel Gibson’s gun rights after he lost them due to a domestic violence misdemeanor conviction,

The host also discussed Mahmoud Khalil‘s detention and the "constant fear of being kicked out of somewhere you see as your home"

If you're not all that familiar with Mel Gibson's father, "Last Week Tonight" host John Oliver would definitely recommend checking out the man's Wikipedia page. The HBO host was simply stunned by it on Sunday night.