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What’s up tonight

02:36

Bill Wolff, executive producer of the Rachel Maddow Show, shares a preview of tonight’s show – President Obama makes news on climate change, which coincides a pretty awful oil spill in Canada; plus, Republicans make differing (read: completely opposite) choices on how to handle the topic of immigration, plus some new details about how the FBI handles internal investigations. And a sign of the times on a dollar bill near you.