The public is blaming Congress as much as the White House for being on the wrong track. Congressional approval ratings are much lower then for President Bush.
Congress is ran by the democrats. When people say they are sick of things they are talking as much or more about the way congress has handled things then anything else.
The public knows very little about Congress and the way it has handled things. Their anger is directed at the government as a whole, without any particulars. President Bush is likable for some people; but the Congress is a vague entity with no redeeming qualities.
