Each of the current administration's Heads of Office, senior officials, including staff, and all members of Congress, including their staff, must go through US airport security, checkpoints and boarding processes as if they were a normal US citizen without any of the rights and privileges of the US government.
To this point, each person must decide to go through the current screening processes of the majority of the US airports and not just ones that have discontinued "backscatter" or other devices other than the older metal detector walk-through. They must make the decision to go through these devices or ask for a TSA pat-down process. They cannot e pre-screened or use the business class by-pass.
Everyone must be treated if they were a normal US citizen.