If the Founders were able to view the corruption, the moral depravity, greed, and laziness that has gripped this country over the past 50 years they'd more than likely just throw up their hands. If it only lived for a little while, it still has lived. I live that line.
From the lack of action in actually passing a budget, War Powers Act violation vis a vis Libya, and the top down restructuring of the healthcare industry by the Federal government are the actual affronts to Constitutional process.
Refusing to fund something is the absolute right of the House. If the President cared for the primacy of the process, he would accept it.