[pawdoggie]

The Washington insiders would say that it's because the bloom is off the "capture of Saddam" rose, the media focus on the Iowa Caucus, and several missteps like the "let's go to Mars on money we don't have", the yellow/orange alerts, and the immigration proposal. But if you want to believe it's only about the immigration proposal, go right ahead. It's still not bad (historically) for a President facing reelection next fall.

[Pubbie]

It is historically high and he is still on course for a big landslide.