In a footnote to its brief, the RNC wrote that the Republican Party will spend millions of dollars in the 2008 election cycle "in voter outreach and voter registration programs."
One Democratic lawyer involved in the Michigan lawsuit said that the last several elections have shown an increase in Republican challenges, though "it didn't used to happen at all."
"Republicans repeatedly say that they are sending challengers in the polls to prevent voter fraud," the lawyer said. "There is no voter fraud. And even if there were challenges, the polling place is not the place to deal with it."
One of the plaintiffs in the Michigan suit, Frances Zick, told ABC News that she was unaware of the alleged Republican threats until the issue was brought to her attention. Zick, a cashier in a supermarket in Sterling Heights, Mich., said Carabelli's allegation "makes me scared," adding, "but I'm going to vote," before referring further questions to her lawyer.
According to the complaint, Zick has received a notice that her home is going to be sold in a mortgage foreclosure sale three weeks before the election.