Campaign Committee Chair Curse?

Is there a campaign committee curse on politician approval ratings?

The Texas numbers we put out today showed NRSC chair John Cornyn with a super mediocre 32/30 approval spread, with 37% of voters having no opinion about him. Is all of his traveling around the country making his constituents forget who he is?

We found an even more negative picture for DSCC chair Bob Menendez the last time we polled on him in October- 34% approval to 45% disapproval.

Their predecessors from the 2006 and 2008 election cycles aren't doing too hot either- Elizabeth Dole was defeated in 2008 after serving in 2006 and John Ensign has seen his political stock crumble because of his personal foibles after doing the NRSC gig in 2008. And Chuck Schumer's in the best shape of the bunch but even he's seeing his lowest approval ratings in years right now.

One thing seems likely- Menendez in 2012 and Cornyn in 2014 may have to put their primary focus on their own prospects for reelection and ditch the national stuff.