Summary: John talks about the late Antonin Scalia's love of the Letter of the Law, Chipotle's food safety problems, how Voter IDs laws should be applied to those who write them, and New Zealand's economic development minister Steven Joyce.

Summary: John talks about the South Carolina Republican primary, the Supreme Court vacancy and abortion, which theoretically is legal in the U.S., but some states make it practically inaccessible. Plus, how is Hollywood whitewashing still a thing?

Summary: John talks about the Egyptian president and economic crisis, the Guantanamo Bay shutdown and Donald Trump.

Summary: Special districts spend more public money than all city governments combined. That's odd considering most of us don't know they exist.

Summary: Strong encryption poses problems for law enforcement, is weakening it worth the risks it presents? It’s…complicated.

Summary: Donald Drumpf wants to build a wall on the U.S.-Mexico border. Is his plan feasible?

Summary: Lawmakers have to raise money to keep their jobs, but a surprising amount of their job now consists of raising money. John Oliver sits down with Congressman Steve Israel to discuss the costs of political spending.

Summary: Credit reports play a surprisingly large role in our lives, but even more surprising is how often they contain critical mistakes. John Oliver helps credit agencies see why this is a problem.

Summary: Lead poisoning is a national problem. If only lawmakers were as concerned as the puppets on Sesame Street.

Summary: Puerto Rico is suffering a massive debt crisis. Lin-Manuel Miranda joins John Oliver to call for relief.

Summary: John Oliver on Sticking to the Facts: Media outlets often report new findings from scientific studies, but how many are true?

Summary: John Oliver on 911 Reliability: Things you never want to hear: there are no guarantees when you call 911. Emergency call centers are in desperate need of funding and new technology, so “no guarantees” is the unfortunate reality.

Summary: Last Week Tonight Tackles U.S. Primaries and Caucuses: The United States selection process for presidential nominees is convoluted — to say the least. Nevertheless, John Oliver reminds Americans that the "middle of the game" is the worst possible time to change the rules.

Summary: John Oliver Takes On Debt Buyers: Companies that purchase debt on the cheap will aggressively collect on it. 'Last Week Tonight’ took a hands-on approach to addressing this issue.

Summary: John Oliver Covers Ins and Outs of Retirement Plans: Saving for retirement means navigating a potential minefield of high fees and bad advice - Last Week Tonight is here to help.

Summary: John Oliver on “Brexiting” from the EU: There might be an innate British desire to diss Europe, but Last Week Tonight lays out exactly why it’s a mistake to leave the EU.

Summary: John talks about the aftermath of the Brexit vote in the United Kingdom and doping in sports with the 2016 Summer Olympics in Rio on the horizon.

Summary: John talks about the disastrous Republican National Convention in Cleveland, where politicians were mostly talking about their feelings equating them to facts. Plus, Hillary Clinton's VP pick, the appointment of Boris Johnson as Britain's Foreign Secretary, the resignation of Roger Ailes from FOX and the unauthorized use of songs in political campaigns.

Summary: John covers the rocky Democratic National Convention in Philadelphia. Plus, the military coup in Turkey and its aftermath, the voter ID laws targeting the minorities and how are tanning beds still a thing.

Summary: John Oliver has some bad news about the state of the industry that gives us our news. Plus, the coverage of the Opening Ceremony of Rio Olympics.

Summary: Auto lenders can steer vulnerable people into crushing debt. Keegan-Michael Key and Bob Balaban help John Oliver show exactly how.

Summary: Charter schools are privately run, publicly funded, and irregularly regulated. John Oliver explores why they aren’t at all like pizzerias.

Summary: Taking a walk down memory lane, 'Last Week Tonight' assesses Donald Trump's vs. Hillary Clinton's scandals.

Summary: John Oliver discusses the systems in place to investigate and hold police officers accountable for misconduct.

Summary: John Oliver examines the legal and moral issues surrounding the military prison at Guantánamo Bay.

Summary: Third party candidates want to be serious contenders, so John Oliver considers them seriously as potential presidents.

Summary: John Oliver discusses the extent and root of the nation’s epidemic of opioid addiction.

Summary: Public schools are increasingly divided by race and class. John Oliver discusses the troubling trend towards school resegregation.

Summary: Multilevel marketing companies claim to be legitimate businesses, but some seems awfully pyramid shaped, and that's a problem.

Summary: The presidential race has been a hell of a ride. ‘Last Week Tonight’ closes out the election and Season 3 with a bang.