Absolutely! THIS is the key to reestablishing our government. Congress needs to let it be known that these department heads are going to face serious, serious consequences if they obey illegal orders rather than their sworn duty as established by Congress.
This is the showdown- where we need to fight to establish congressional powers again over the out of control president.
Screw Congressional powers how about States standing up for their rights? They are not required to carry out unconstitutional edicts by the President.
We held the Nuremberg trials for people who were only following orders.