Poor Katie Couric. She's been stuck in a ratings rut since taking over the "CBS Evening News" anchor slot and has been rumored to be departing the Eye network. Now comes more bad news for the former morning star: Barack Obama has begged off on CBS's North Carolina debate.

That leaves Couric as the sole broadcast news anchor who hasn't moderated a debate this cycle. That isn't likely to change either since general election debates are usually Jim Lehrer's province. Couric isn't the only CBSer who's disappointed:

"It's a shame because the debates have been interesting and appealing to the audience, and because I think Katie would have done a really good job," CBS senior vice president Paul Friedman told the New York Times.

It shouldn't come as a surprise, though. After Obama's dreadful performance in the most recent ABC debate it's no wonder he canceled. Still, you have to wonder how this makes Couric feel about her position at CBS. Will I have to make a CBS-Couric breakup image sometime soon?