The Times-Picayune - NOLA.com How do Louisiana's congressional races affect the U.S. Senate race? "There may not be any effect," said Geoffrey Skelley, an election expert with the University of Virginia's Center for Politics. "Usually, there are less and less votes with every race down the ballot." http://www.nola.com/politics/index.ssf/2014/09/how_do_louisianas_congressiona.html