Okay, let's take this line of reasoning to it's end. This means you won't oppose any of the nominees from the next Democratic President either will you?
You can't have it both ways. We all know he has the authority to nominate Humpty Dumpty, but that doesn't mean we have to shut up about it. We have a right and moral obligation to see the right people on the court regardless of it being a Dem or Pub.
Your argument if flawed. We have the right to criticize anybody. But, Bush acts as the effective leader of his party. We should largely trust him on these issues.
That is way different from when a Dem is in office because he would not be acting as our essential representative. We would be supposed to criticize anything he did.
YES I can have it both ways. When someone like the Klintoon nominates, based on his record and actions, I reserve my right to voice my opposition because i feel his actions are not always for the good of this country. However, HE IS STILL PRESIDENT!!