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It\u2019s been four years since the 2016 election laid bare the powerful role that social media companies have come to play in shaping political discourse and beliefs in America.\n\nSince then, there have been growing calls to address the spread of polarization and misinformation promoted on such platforms.\n\nWhile Facebook has been slower to acknowledge a need for change, Twitter has embraced the challenge, acknowledging that the company made mistakes in the past. But with three months to go until the 2020 election, these changes have been incremental, and Twitter itself is more popular than ever.\n\nToday, Jack Dorsey, Twitter\u2019s C.E.O., discusses the platform\u2019s flaws, its polarizing potential \u2014 and his vision for the future.\n\nFor more information on today\u2019s episode, visit nytimes.com/thedaily\xa0\n\nBackground reading:\xa0A 17-year-old in Florida was recently responsible for one of the worst hacking attacks in Twitter\u2019s history \u2014 successfully breaching the accounts of some of the world\u2019s most famous people, including Barack Obama, Kanye West and Elon Musk. But did the teenager do the country a favor?Twitter is in hot water with the government for sharing with advertisers phone numbers given to the company for personal security purposes