Rep. Marsha BlackburnMarsha BlackburnOvernight Tech: Big win for Samsung over Apple | Trump to sit down with tech leaders | Trump claims credit for B investment deal House votes to double budget for Planned Parenthood investigation Will Trump back women’s museum? MORE (R-Tenn.) said during a Tuesday night sendoff rally that efforts are being made in several states to help bring resources from states like Alabama, which are expected to support Romney to battleground states like Ohio.

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"Voter contact is absolutely imperative," she said, according to WHNT. "The way you do it is by making individual voter contact, and that's why you are seeing Republicans, Democrats, independents and other supporters of Governor Romney across the country going to these battleground states, saying 'We want to make certain Mitt Romney wins, and these are the reasons why.' "

Buses from Alabama set off on the same day that polls had Romney and President Obama tied at about 48 percent apiece. Several analyses of the election on Wednesday said Romney wins in Florida, Ohio and Virginia would mean he needs just one of four smaller swing states to win the nomination, but would have to sweep those swing states to win without Ohio.