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Bill Nye explains why water on Mars matters
MSNBC’s Lawrence O’Donnell wants to know what it’s such a big deal that NASA found evidence of liquid water on Mars. So he turns to the best expert possible, Bill Nye the Science Guy.
Lawrence: Sen. Grassley proves that Sen. Grassley is lying12:55
Ex-Judiciary Committee staffer: Blasey Ford treated worse than Anita Hill08:30
Grassley responds to Kavanaugh accuser’s request for FBI probe15:02
What will McConnell do on Kavanaugh?03:06
Lawrence: why Trump is terrified about Kavanaugh05:04
Schiff reacts to Trump order to release Russia documents08:37