His news party show, Last Week Tonight, attracts a TV and online assembly of millions any week.
It has turn so successful on the subjects he tackles that it is famous as the “John Oliver effect”.
The Emmy award-winning programme is about to start a fifth season, and so its horde is giving interviews to promote it.
I started by asking him how he feels about the inflection of late night party shows in the US right now.
He said: “I consider that any time late night comedians are this prevalent in the inhabitant conversation, that’s substantially not a good sign of inhabitant health.
“If there’s a canary in the spark cave it’s choking at that point.
“When late night shows are just a side show, generally things are going better.”
Oliver is no fan of President Trump, who is a visit theme of the show.
One of his early rants about claimant Trump racked up scarcely 34m views on YouTube alone.
Even yet the avalanche of news around the stream administration has been a cultivatable topic, Oliver doesn’t seem that happy about it.
He said: “There is an contentment of element to a very genuine cryptic extent. It is just a firehose of bulls**t.
“So the problem with that is when it’s coming at you that fast, it’s tough to filter out the things that means something, that means nothing, that you can ignore, that you must not omit at all costs.
“It’s formidable to redeem viewpoint when you’re just drowning all the time.”
Oliver pronounced he thinks that Trump represents a genuine hazard to America.
“He’s a elemental hazard to the institutions that this country is built on in a way that is not customarily the case with a President on this scale.
“He is holding an mattock to some flattering elemental tools of American governance.
“What he’s doing with the State Department is going to have ramifications for years after he has gone.
“There’s a brain empty in supervision that is going to take generations to redeem from.”
I forked out that lots of people voted for him, and asked if he accepted why.
He said: “There’s not one reason right, there are lots of reasons that people voted for him; some good, many bad.”
Brexit is also a favourite topic.
He said: “I would disagree that there is zero that’s not engaging about the British negotiations since that is a s**t show of the top water.”
Does he consider there should be a second referendum?
“Well, ideally, yes. Because it seems peculiar to make a decision formed on information that was at best misleading, see the intensity ramifications of that decision, and then be held to what may have been a misinformed choice.
“Now if people still wish it, that’s fine.
“But we consider if you still wish it on the terms that are being presented to you that’s very opposite from wanting it on the terms that were presented to you on the side of a reticent red bus.”
He muses on the ever augmenting traction of the term “fake news”, and how his own show has incited into a high stakes battle to contend the trust of his audience.
He said: “We meticulously investigate the stories we are doing since we take some flattering big swings at politicians and corporations…if we get that wrong, it’s substantially over for us, realistically.
“We can’t be feign since of the frightful consequences that would come with being wrong, but also there is an border to which if you build a story on silt it’s just going to fall and you’ve demolished your own evidence before anyone’s even pounded it.
“So (we) always have to make certain that the foundations of what we’re articulate about are totally solid, differently we don’t really have anything to say.”
Will he give us a hide preview of any rising themes in the new season?
“If we told you the stories that we did last year forward of us doing them, you wouldn’t watch since it would sound terrible, so like if I’d pronounced to you last year, ‘we’re going to speak about vaccines for thirty minutes’, you wouldn’t watch since nobody wants to see that s**t.
“So partial of the routine of the show is selling to people in the moment, once we’ve already got your attention, since it’s worth listening to us speak about flood insurance for another 20 minutes.
“So yeah, the mixture of the show are so objectively nauseating they don’t really work as a tease.”
Last Week Tonight front on Sky Atlantic, Monday 19 Feb, at 10.10pm