Likewise, Missouri has been decided by slim margins in the past three elections, but carried by Republicans in all three.
As in Arizona and even Georgia, where Obama's team has also made overtures, Missouri is considered GOP territory this year.
"The Romney campaign is going to make sure we have the resources to compete in states where Democrats throw a head fake," Romney's Madden said. "And I'm saying Missouri is not being targeted by the Democrats."
Associated Press writer Ken Thomas in Washington contributed to this report.
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