What legal arguments is the Trump administration making about its authority in relation to Congress and the courts?

The Trump administration is arguing that they don't have to spend money Congress has appropriated if they don't want to, essentially claiming Congress cannot dictate their spending actions. This fundamentally challenges the constitutional power of the purse held by Congress. Additionally, the administration, through the Vice President, is asserting that courts cannot prevent them from implementing their policies, suggesting they are beyond judicial oversight. These arguments represent a significant challenge to traditional checks and balances, as the administration is attempting to minimize both legislative and judicial constraints on executive power.