In an extended interview, Sacha Baron Cohen tells 60 Minutes about early influences, creating his iconic characters and why he brought back Ali G.

As Democrats and Republicans battle for control of the House and Senate in the upcoming midterm elections, 60 MINUTES’ Lesley Stahl reports on the stress on our voting system as the Trump administration places demands on state and local election officials. Stahl travels to Utah, where Republican Lieutenant Governor Deidre Henderson explains why she’s resisting pressure from Washington, and then speaks with Harmeet Dhillon from the Department of Justice about the role of the federal government. Andrew Bast is the producer.

When the Strait of Hormuz was effectively closed at the start of the war with Iran, it didn’t just choke off oil and gas; it also trapped one-third of the world’s helium supply. Then, Iranian strikes hit Ras Laffan in Qatar, the largest natural gas and helium facility in the world, further rattling supply chains. Correspondent Jon Wertheim reports on how this disruption halfway across the world is affecting a range of American industries, from scientific research to semiconductor manufacturing. Lucy Hatcher is the producer.

60 MINUTES’ Ariel Levy travels to London to sit down with Sacha Baron Cohen, the actor behind Borat, Brüno, and Ali G, who has unleashed his iconic characters on unsuspecting people in the real world. The Golden Globe winner and Oscar nominee speaks with 60 MINUTES about his new film, the craft behind his form of undercover comedy, and the serious point behind his satire. Michael Karzis, Aaron Weisz and Ian Flickinger are the producers.

Elizabeth Holmes claimed her start-up, Theranos, would revolutionizing blood testing, taking a pin-prick of blood and performing hundreds of laboratory tests. But as Norah O'Donnell reported in 2018, Theranos' machine never delivered on its promise, and Holmes is currently serving an 11-year prison sentence for defrauding investors.