Last Week Tonight with John Oliver: Season 4

Donald Trump spreads a lot of false information thanks to his daily consumption of morning cable news. If only we could sneak some facts into the president’s media diet.

Vladimir Putin is known as a ruthless leader and master manipulator. John Oliver enlists a group of singing dancers to explain that to Donald Trump.

Congressional Republicans could soon vote to repeal Obamacare. John Oliver explores why their replacement plans are similar to a thong.

Tibetan Buddhists have suffered deep persecution by the Chinese government. John Oliver sits down with the Dalai Lama to discuss China, the conditions in Tibet, and horse milk.

The Republican health care bill could leave many Americans without affordable coverage. Last Week Tonight's catheter cowboy returns to morning cable news to explain that to Donald Trump.

Donald Trump's federal budget plan proposes large funding cuts with largely negative consequences. John Oliver examines the troubling priorities of the new administration.

Other segments: Trump Tower wiretapping allegations, United Kingdom invocation of Article 50 of the Treaty on European Union, La Paz traffic zebrasGuest: Actor and puppeteer Noel MacNeal

Lawmakers often reshape voting districts to shift the balance of political power. That's unfair to voters, even those of us with questionable judgment.

The presidential election in France could determine the political future of Europe. John Oliver visits an excessively French bistro to deliver an urgent message to voters.

Ivanka Trump and Jared Kushner hold an incredible amount of political power. That's troubling considering their incredibly small amount of political experience.

Equal access to online information is once again under serious threat. John Oliver encourages internet commenters to voice their displeasure to the FCC by visiting www.gofccyourself.com.

For-profit dialysis companies often maximize their profits at the expense of their patients. John Oliver explores why a medical clinic is nothing like a Taco Bell.

Main article: Stupid WatergateOther segments: Donald Trump's disclosure of classified information to Russia, Comey memos, Transportation Security AdministrationGuests: Sesame Street penguins (performed by actors and puppeteers Pam Arciero, Tyler Bunch, Stephanie D'Abruzzo, and John Kennedy)

Donald Trump plans to withdraw the United States from the Paris agreement on climate change. That's bad news for anyone who happens to live on this planet.

In the wake of a divisive election, the UK will begin the process of leaving the European Union. John Oliver and an intergalactic space lord propose a plan.

Other segment: American Health Care Act of 2017Guest: Actor and puppeteer Noel MacNeal Note: Within four days of airing of this episode, Bob Murray sued John Oliver for defamation over content presented in this episode. Murray eventually dropped his lawsuit two years later, which was the subject of the main segment of the November 10, 2019 episode.

The benefits of vaccines far outweigh the minuscule risks, but some parents still question their safety. John Oliver discusses why some people may still feel uncertainty about childhood vaccinations.

Other segments: Donald Trump's Twitter comments about Mika Brzezinski, Trump administration's travel ban, the Hall of Presidents wax museum in GettysburgGuests: Actors Steve Schirripa, Campbell Scott, Anna Kendrick, Michael McKean, James Cromwell, and Laura Linney

Other segments: Donald Trump administration's proposed transgender military ban, Anthony Scaramucci, Health Care Freedom Act of 2017Guests: Actors Jack McBrayer, Gilbert Gottfried

Donald Trump's plan to hire more Border Patrol agents could lead to more corruption and misconduct. If only their recruitment ads were designed to attract the most suitable applicants.

As nuclear tensions continue to escalate between the United States and North Korea, John Oliver enlists "Weird Al" Yankovic to perform some accordion-based diplomacy.

Nuclear waste poses a serious threat to public health if it's not stored in a safe place. John Oliver explains why the United States desperately needs to build a metaphorical toilet for all that waste.

Donald Trump issued his first presidential pardon to the last person who should get one. John Oliver discusses the troubling record of former Arizona sheriff Joe Arpaio.

Big businesses are getting even bigger thanks to a rise in corporate mergers. John Oliver explains why that could make you want to physically destroy your cable box.

Other segments: Trump administration's tax reform proposal, aftermath of Hurricane Maria in Puerto Rico Guests: Actors Josh Charles, Shannon Woodward, Josh Lucas, Samira Wiley, Robert John Burke

Other segments: Trump's response to Hurricane Maria's impact on Puerto Rico, Trump's feud with Rex Tillerson, Harvey Weinstein sexual abuse allegations Guest: TV host Stephen Colbert

Other segments: Harvey Weinstein sexual abuse allegations, United States withdrawal from the Joint Comprehensive Plan of Action

John Oliver explains why our federal system for financing flood recovery perpetuates a pattern of destruction and why you should never offer a tortilla chip to a seagull.

State and local governments offer large financial incentives to attract employers to their part of the country. John Oliver explains what communities get, or often don't get, in return.

Guests: Actors Thomas Kopache, Jack McBrayer, Tom Hanks, actor and puppeteer Noel MacNeal, Sesame Street penguins (performed by actors and puppeteers Ryan Dillon, Frankie Cordero, Peter Linz and Carmen Osbahr)