Dave Cullen, author of "Columbine," discusses the Parkland, Fla., shooting survivors and says that while he doesn't foresee the protests slowing, he's not sure they'll lead to lasting change. For the full interview, [click here](https://cheddar.com/videos/from-columbine-to-parkland-a-journey-of-gun-reform).

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Chicago Mayor Lori Lightfoot Loses Reelection Bid
Paul Vallas and Brandon Johnson will meet in a runoff to be the next mayor of Chicago after voters on Tuesday denied incumbent Lori Lightfoot a second term, issuing a rebuke to a leader who made history as head of the nation’s third-largest city.
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