"Last Week Tonight" host John Oliver closed out his season with a special report for Fox News hosts who seem to be struggling with the basic understanding of things like "bribery" or the concept that attempted crimes are still actually crimes.

At the top of Sunday's show, Oliver played a clip of Fox News host Laura Ingraham who made the argument that if Trump tried to commit a crime and didn't manage to pull it off, then he's clearly innocent.

"Attempted bribery isn't in the constitution," proclaimed Ingraham, forgetting about what "high crimes and misdemeanors" covers. "Remember, Ukraine got its aid, it was 14 days delayed, big deal. And Ukraine never made any public statement about the investigation."

CNN host Chris Cuomo did a special investigative report by Drew Griffin looking at the money trail from Russia to President Donald Trump's Ukraine scandal.

"You probably don’t know Dale Perry, but history may record this energy executive as one of the first who sounded the alarm about what would become President Trump’s impeachment inquiry," said Griffin. "In April, Perry’s former business partner Andrew Favorov, now a director at Ukraine's state-owned gas company Naftogaz, says two shady characters had approached him, with a secret management plan to take over the management from the inside. Those two shady characters Lev Parnas and Igor Fruman, are two low-level, Soviet-born businessmen from south Florida. And they were trying to clear the way for their own gas business."