Here are the details from yesterday's release of the WSJ/NBC News poll: Poll Details.
Small sample, interesting trend as people seem to be distancing themselves from the current president. A more thorough survey might help us understand what this means beyond the typical knee-jerk explanations by those who dislike the president. Consider that there may be little agreement about WHAT approaches people would want changed with a new president. For example, most strong borders advocates hate the president's stance on amnesty, but strongly support winning the war in Iraq. Likewise, those who might support the president's amnesty proposals typically hate his position on the war.
It's too bad this poll wasn't large and comprehensive enough to tell us something more meaningful.