If the Court issues an opinion in a particular case, and the President and/or the Congress believes in good conscience that the opinion is unconstitutional, should they follow it?
Do you really want to give that authority to Obama, Reid and Pelosi?
Do you want Obama to decide that the laws forbidding Americans to support an enemy in combat on foreign soil are unconstitutional.
Do you want Pelosi to decide that laws prohibiting adoptions by avowed homosexuals, such as we have in Florida, are unconstitutional?
Like it or not, they must.