Michelle Obama stops in Minnesota today... seeking support for her husband's campaign.Mrs. Obama was in Rochester at a Mayo Civic Center for a noontime rally.She told the crowd they have a chance to impact history and to rebuild the nation.Michelle Obama says, 'We've seen young people finding their voices, many of whom are excited for the first time about politics. But we've also seen some not so young folks as well, yay for the not so young folks!'Mrs. Obama also stopped in St. Paul.Minnesota has been the site of frequent campaign stops for both parties.