If there is no winner with over 50% of the vote, there'll be a run off election. In this case, it will be between 2 Dems. They are all running against Jefferson, who is a crook. I can't believe he's got so many votes, just goes to show its definately a Louisiana election.
To quote from Wikipedia
The first round of the Louisiana House election of 2006 will be held on Tuesday, November 7, 2006...
...
Louisiana uses a unique voting system to determine its representation in the U.S. Congress. Elections in Louisiana—with the exception of U.S. presidential elections—follow a variation of the open primary system called the jungle primary. Candidates of any and all parties are listed on one ballot; voters need not limit themselves to the candidates of one party. Unless one candidate takes more than 50% of the vote in the first round, a run-off election is then held between the top two candidates, who may in fact be members of the same party. This means that the outcome of some races might not be known until over a month later than the rest of the country.