(Foreign Policy) Celebrities testifying on Capitol Hill are a staple. Like with most transactions in Congress, there’s something to be gotten by both sides: lawmakers get attention they typically wouldn’t for their issues, and the VIPs — from Bono to Elmo – get to soak up some of that special gravitas that only a congressional microphone can provide.

Next week, we’ll see a few. Ben Affleck will be speaking to the Senate Foreign Relations Committee about Congo on Wednesday, while actor Seth Rogen is slated to address another Senate panel about Alzheimer’s disease. But a House committee apparently didn’t think Affleck was enough of an expert on the African nation to merit a spot at a similar hearing on the other side of the Dome, Foreign Policy is reporting.

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