simon and garfunkel lent their music to the new sanders ad. ♪ they've all come to look for america ♪ >> yeah, this ad has gotten a lot of attention. art garfunkel spoke with our michael smerconish why he decided to let sanders use the classic song. >> i like that bernie is very upset by the gap between the rich and the poor. i think that's central. the power of money to -- when bernie says hillary gave a speech and got $275,000 for that speech, you got to give a very good speech to earn that money. he's winking as we know the power of whoever backed her. and she's beholden to them. that's how america, would till somebody says not with me. >> does the purpose of the song if you read the liner notes and i remember what liner notes are, does it match the message of that commercial or is it that we