[quadragenarian]

This feels like circular reasoning. In order to execute his (or her) Constitutional Duties, the President must execute laws faithfully. However, the President is extended limitless benefit of the doubt if he decides to not execute the laws put forth by Congress, which means he's not executing his Constitutional duties. So which one is it?

[NoGravitas]

You may, unfortunately, thank the Supreme Court for that bit of circular reasoning, rather than GP. Executives since Nixon have been pushing the line that "if the president does it, it's not illegal", and they finally got a SCOTUS to accept it.