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Democatic presidential contender Barack Obama said Wednesday his Republican rival John McCain "thinks we're on the right track," drawing a chorus of boos from a swing state audience vocal about the status quo. Democratic presidential candidate, Sen. Barack Obama, D-Ill., speaks at a town hall-style meeting in Rolla, Mo., Wednesday, July 30, 2008. Democratic presidential candidate, Sen. Barack Obama, D-Ill., speaks during a town hall-style meeting in Springfield, Mo., Wednesday, July 30, 2008. Democratic presidential candidate, Sen. Barack Obama, D-Ill., speaks during a town hall-style meeting in Springfield, Mo., Wednesday, July 30, 2008. Democratic presidential candidate, Sen. Barack Obama, D-Ill., speaks during a town hall-style meeting in Springfield, Mo., Wednesday, July 30, 2008.