With less than a year to go before Election Day 2014, three Southern Democrats in the U.S. Senate are up for re-election and Republicans are trying to capture all three seats, which would strengthen the party’s firm hold on the Senate in South. Senators Mary Landrieu of Louisiana, Mark Pryor of Arkansas, and Kay Hagan of North Carolina are the three Democrats up for election next year. Political science professor Thomas Schaller was interviewed by The New York Times about the Democrats’ future prospects in the South. “Democrats are fighting against history in most of the South,” Schaller said. “You can still …