In this episode, Natalia, Niki, and Neil discuss YouTube's role in political radicalization, the history of tariffs, and the presidential candidacy of Senator Elizabeth Warren.

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Here are some links and references mentioned during this week's show:

• YouTube's algorithm, the New York Times reported, serves up increasingly extreme content to viewers. Niki recommended media studies scholar Siva Vaidhyanathan's book Antisocial Media. Natalia recommended Niki's book Messengers of the Right.
• Tariffs have become a central part of President Trump's foreign policy. Niki cited historian Marc W. Palen's book, The Conspiracy of Free Trade, and Natalia referred to historian Lizabeth Cohen's book A Consumer's Republic.
• Senator Elizabeth Warren's 2020 candidacy is inspiring passionate support from many on the left. Natalia recommended this Politico article about Warren's conservative past.

In our regular closing feature, What's Making History:

• Natalia recommended historian Joshua Specht's new book, Red Meat Republic: A Hoof-to-Table History of How Beef Changed America.
• Neil discussed Jia Tolentino's New Yorker article, "Why Humans Treat Their Dogs Like People."
• Niki shared Lindsay Parks Pieper's Washington Post article, "The Biggest Challenge Facing the U.S. Women's Soccer Team Isn't on the Field."