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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Overhaul of Supreme Court Ethics Runs Into GOP Opposition
Senate Democrats promised Tuesday to pursue stronger ethics rules for the Supreme Court in the wake of reports that Justice Clarence Thomas participated in luxury vacations and a real estate deal with a top GOP donor. Republicans made clear they strongly oppose the effort.
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