a. The source of authority in this executive order is President Trump's constitutional power as President of the United States. The executive order states that it is issued "by the authority vested in me as President by the Constitution and the laws of the United States of America."
b. The power in this executive order is being checked and balanced by the existence of the legislative branch. While President Trump seeks to repeal the legislation through executive action, the ultimate power to repeal or amend the Patient Protection and Affordable Care Act lies with Congress. Therefore, Congress has the authority to reject the President's proposed repeal and maintain the legislation.
c. This executive order seeks to address rapid change by allowing the executive branch, specifically the Secretary of Health and Human Services and other agencies, to exercise discretion and flexibility in implementing and enforcing the provisions of the Act. This flexibility is intended to minimize any unwarranted economic and regulatory burdens that may arise during the transition period while preparations are made for the potential repeal.