While the executive branch is within the authority to issue the EO, once the judicial system issues the stay, the executive branch can't proceed and have other governmental agencies enforce the EO. The issue is did the POTUS instruct the TSA and other federal agencies to disregard the judicial stay? If so then he over reached the executive authority. In our country we have very specific system of checks and balances to insure the constitution is the basis for all decisions. It insures no one branch is more powerful than the other. Please investigate.