"I think that is the purpose of the system."
I have to ask you how you came to that conclusion.  I'm always looking to expand my political history to include new information and I cannot think of anything that framers of the constitution wrote or did that lends support to this conclusion.  If anything, the reverse seems more likely with events like Marbury v. Madison.  A case which illustrated that the US was a "nation of laws."

The Senate has a legal duty to advice certain Presidential actions.  The reason why we have only one office in the Executive is for swift action.  Other executive actions are open to disagreement, such as treaties and use of the military, and not even holding a hearing for any of them is a gross dereliction of duty.

I'd say it is fair to conclude the Republican led Senate undermined the process.  Putting the good of the party before upholding the law and the Constitution "undermined the process."