In a move with huge consequences both at the Senate and at the House level, Rep. Charlie Melancon announced today that he will challenge Louisiana Senator David Vitter.
Senate: A surprisingly strong get for the DSCC but Vitter remains favored
This should ensure that Louisiana hosts a Senate race well worth watching. Vitter has been on everyone’s list of vulnerable senators ever since he was involved in the D.C. Madam scandal, but Democrats had little bench left. Melancon was one of the only high-profiles names considering this race, and his entry is as good a get as the DSCC could have hoped for. A March Research 2000 poll found Vitter leading Melancon 48% to 41% while a July PPP survey had him up 44% to 32%. Comfortable leads, but certainly not overwhelming ones - and Vitter is noticeably under the 50% mark.
That said, Vitter has to be considered the clear favorite. His poll numbers bear little trace of the 2007 scandal and Louisiana has been rapidly drifting rightward, especially given the demographic changes brought about by Katrina. In 2008, Mary Landrieu survived with just 52% of the vote despite a national environment that was golden for Democrats, so how high could Melancon hope to get in a cycle that is bound to be less favorable for his party?
I have repeatedly argued that Democrats do not for now have to fear the prospect of a red wave, but that doesn’t mean it would be as easy for them to challenge Republican incumbents - especially those who are sitting in states Democrats have no more business contesting. Melancon might have had a 50:50 shot to win in 2006 or in 2008, but 2010 is another story. The burden is now on the DSCC to prove that Vitter should worry.
Of course, even if he did make it to the Senate, Melancon would be one of the most conservative Senate Democrats - probably even to the right of Mary Landrieu: A supporter of the Federal Marriage Amendment, Melancon voted against health care reform when it came up in the Energy and Commerce Committee last month. Even if Vitter is one of the more conservative senators, can Melancon expect an enthusiastic reception from Democratic activists given that latter vote?
House: A golden opportunity for Republicans
It might still be unclear how competitive the Senate race will get, but we already know for sure that Melancon’s decision creates a huge headache for House Democrats. LA-03 is a staunchly conservative seat - George W. Bush got 58% of the vote in 2004, McCain received 61% in 2008. Melancon won in a tough open race in 2004 but he didn’t face much of a challenge in the subsequent two cycles, entrenching himself enough that he would have been favored to win a fourth term in 2010.
Yet, LA-03 will now feature an open race. In such conservative territory, that undoubtedly makes the district one of the GOP’s top takeover prospects - right up there with AL-02, ID-01 and MS-01. Democrats have a strong bench in the district (Swing State Project broke down the state legislators representing a portion of LA-03 and found that most state Senators are Democrats) so they should be able to remain competitive rather than simply folding. But given that we are talking about a 62% McCain district hosting an open seat in the midterm elections of a Democratic president, it’s hard not to consider Republicans the early favorites.
What this means is that Louisiana is now more likely than not to give us a House wash in 2010. With Democrats highly favored to recapture the New Orleans-based LA-02, Republicans can certainly hope to compensate by picking-up LA-03.
Note that such an exchange of seats might not affect the House’s partisan composition, but it would certainly change its ideological breakdown: Given how left-wing a district he represents, Cao is bound to be one of the most unreliable Republican representatives while Melancon is a staunchly conservative Blue Dog. So if both parties do pick-up a seat, Democrats are likely to exchange Melancon for a left-wing representative while Republicans would replace Cao with a staunch conservative.
[Update: CQ provides more names of potential House candidates, including Scott Angelle, a longtime Democrat who is now serving in Bobby Jindal's Cabinet - making him a potential recruit for both parties, a la Bobby Bright.]
For Democrats, redistricting could assuage sting of House loss
All in all, then, all of this makes it hard to consider Melancon’s decision as that good news for Democrats: They are more likely to lose his House seat than they are to truly endanger Vitter, which also makes Melancon’s move a huge career risk. So why did he do it?
I can think of only one word: Redistricting. Democrats do have (very) tenuous control of both chamber’s of the legislature, so the GOP cannot simply gerrymander Melancon out. But Louisiana is slated to lose a seat in the next round of redistricting, and that will mean an extensive redrawing of the congressional map. It will not necessarily be easy for Democrats to salvage a good district for Melancon, and the prospect that they’ll lose the state legislature in 2011 (allowing the GOP to easily dislodge Melancon) has to be considered.
And this gets us to the one comforting thought for the DCCC: If Republicans do pick-up LA-03 next year (giving them a 6-1 advantage if they also lose Cao), they’ll probably have no choice but to accept to sacrifice one of their own. New Orleans is too predominantly Democratic for the GOP to hope to control all of the state’s districts, so the best configuration it could hope for post-redistricting is 5-1. This considerably lowers the stakes of the LA-03 race.

