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Now Playing: 09-05-12 Marketplace

Chicago Mayor Rahm Emanuel has left the Obama campaign to help raise money for a pro-Obama super PAC. As the Democratic National Convention continues in Charlotte, just how much does trending on Twitter matter for lawmakers? One North Carolina farmer tell us the importance of immigration when it comes to casting his vote. Plus, we check in with a nuclear processing plant in New Mexico that was brought in to create jobs. We speak with one teacher who was laid off due to budget cuts. We look at the job situation for NFL refs on strike. We explore the possibility of adding another work day in Greece. And, a look at the @ symbol.