I'll bet he's heard of Michelle Bachmann though

One minor anecdote from the recent convention: Cheryl and I were sitting at a bar the final night, eating dinner, watching MSNBC which was turned up loud enough on the 20 or so TVs that we could actually hear it over the hundred or so people is this amazing bar (Note to self: Find 10 Blocks South beer locally and drink more of it). Cheryl started up a conversation with a 20-something well-dressed black man at the table next to her, where he was sitting with a friend. They started talking politics and he mentioned how he'd like to get more involved in it when he has time. I joined in the conversation from time to time and at one point when John Lewis came on the screen we were all watching, I asked him if he knew who he is. He did not. I guess I would have been slightly surprised if he had known, but that's such a shame.

From Wikipedia: John Robert Lewis (born February 21, 1940) is the U.S. Representative for Georgia's 5th congressional district, serving since 1987 and is the dean of the Georgia congressional delegation. He was a leader in the American Civil Rights Movement, playing a key role in the struggle to end segregation.