"He walked us through his decision and it is chilling to watch 40 seconds of his mind at work," Oliver joked.
The late-night host said the Mueller report revealed that staff refused Trump's orders, which may have ultimately saved him.
The host led a segment that was centered around the public shaming of Monica Lewinsky, including by Leno.
The "Last Week Tonight" host accused Ingraham of fueling the racism behind Sunday's "Unite the Right" rally in Washington, D.C., with her anti-immigration rhetoric.
"It looks eerily real because it's depressingly plausible," Oliver said of the unused Ivanka Trump graphic.
The HBO host revealed some shocking truths about our country's immigration court system—including the fact that children as young as 3 or 4 are required to defend themselves.
The children's book is dedicated to "every bunny who has ever felt different."
"Trump may be the first-ever troll to be elected president."
The "Last Week Tonight" host reacts to the academy's expulsion of the disgraced Hollywood producer.
"Monuments are not how we record history—books are, museums are, Ken Burns 12-part miniseries are."
"Arpaio broke the rules he was sworn to uphold, rules that are put in place to protect citizens from a government going out of control," Oliver said of the former Arizona sheriff.
"He threw an airball so far away it landed in the Third Reich."
"If everyone is really honest, your level of fear over the North Korea situation is in direct proportion to whether they can hit the exact place where you live," said Oliver.
Jones's reported "health expert" falsely claims to be an MIT alum, Oliver says.
"The care of America's kidneys is way too important to be treated like a fast food experience," says Oliver.
"It seems that the Trump era will basically CTL-Z everything that happened on Obama's watch," Oliver says in reference to the president's stance on net neutrality.
"I know all of this seems like an evisceration of both Jared and Ivanka, but it is really not," says Oliver. "I don't know enough about them to eviscerate them."
"You in France love nothing more than acting like you are better than Britain and America," Oliver told French voters. "Now is your chance to prove that."
"In a democracy, the question of who gets to draw the map should not have as much significance as it currently does," says Oliver.
"This bill seems almost universally hated in Washington," says Oliver. "It is truly the Ted Cruz of health care legislation."
"Trump sees something that jibes with his worldview, doesn't check it, half-remembers it and then passes it on, at which point it takes on a life of its own and appears to validate itself," says Oliver.