A new CNN/ORC International poll in Louisiana finds Sen. Mary Landrieu (D) with a small lead over Bill Cassidy (R) in the U.S. Senate race, 43% to 40%.
“But this is Louisiana, and the election system can be complicated. There are nine candidates — Republicans, Democrats, and a Libertarian — on the ballot this November, and if no candidate crosses the 50% threshold, the race moves into a December runoff between the top two contenders.”

