He doesn't have to, Obama has already rubbed his own nose in it.
I think that Jay Carney came off very snarky (as usual today) suggesting that the Republicans could move their debate if they wanted to...then when it came out that in the past, presidents had asked weeks in advance (except for an emergency like 9.11) it showed how political Obama was being. Even the news reports made mention of the fact that the debates had been set up for months...the sinker for Obama was when an unidentified Dem congressmen complained about not giving enough time.
The best part of this is that Obama looks weak...and if he complains during the speech, he will look like a petulant child ...and he will because he can’t help himself.