One of the reasons the last four years sucked is that the the Republicans had the White House and controlled the House and Senate for a majority of the time. That in it's self isn't horrible (it's not good, but it's not horrible either). The problem is that the Republicans followed Bush lock step most of the time, and did not question him.
Now Obama is in power and the Democrats hold the house and senate, and what happens when one democratic senator says she feel the head of the CIA should have come from within the CIA and not be an external politician? The democrats start shouting her down.
Are we once again going to have 4 or 8 years of the ruling party following the president lock-step, without room for discussion or debate?
I like Obama. I trust him and I voted for him, but blind obedience scares the crap out of me.