Start with the basics: the president cannot directly “do” things to the Supreme Court the way a governor might reorganize an agency. The most concrete presidential power is the nomination of justices when vacancies occur, and the Senate must confirm those nominees. That reality is the central lever for changing how the Court interprets the Constitution.
Nominations matter because each justice brings a lifetime voice to constitutional questions like the meaning of the 14th Amendment. For Republicans who want a different outcome on issues such as birthright citizenship, the path is to nominate judges committed to originalist or textualist interpretation. Even with sympathetic justices, cases must come before the Court and the legal record must support the change sought.
Changing the Constitution is another route and the only ironclad way to alter birthright citizenship beyond judicial reinterpretation. A constitutional amendment requires two-thirds of both houses of Congress and ratification by three-quarters of the states, a high bar that reflects the framers’ intent for stability. Republicans can push that process, but it is long, politically costly, and unlikely to happen quickly.
There are legislative options short of an amendment, but they face steep constitutional challenges. Congress can pass laws affecting immigration administration and citizenship procedures, but the 14th Amendment’s Citizenship Clause is widely understood to grant birthright citizenship, so any statute aiming to overturn it would invite immediate court battles. Even jurisdictional maneuvers to limit what the Supreme Court can hear are legally controversial and risk deep constitutional fights.
Some propose more aggressive measures, such as expanding the number of justices or changing court jurisdiction, but these ideas carry political risk and limited legal certainty. Court expansion would require an act of Congress and would itself become a partisan flashpoint that could provoke long-term backlash. From a Republican perspective, winning confirmations and building a bench of conservative lower-court judges is a cleaner, more sustainable strategy.
Impeachment of justices is possible in theory for “high crimes and misdemeanors,” but it is not a tool for ordinary policy dispute. Attempts to remove justices for their rulings would destroy norms and likely deepen institutional instability. Republicans seeking durable conservative rulings should prioritize confirmation battles and conservative legal education over impeachment gambits.
Practical action also includes shaping the cases that reach the Court by directing enforcement priorities and supporting targeted litigation. A president can influence which immigration policies the federal government defends, and that affects the legal questions the courts address. Conservative attorneys general and executive agencies can create records that favor certain constitutional interpretations when disputes eventually reach the high court.
Politics matters as much as law. Senate control, public messaging, and state-level coordination determine whether nominees are confirmed and whether constitutional amendments gain traction. Republicans aiming to change outcomes should focus on winning elections, preparing qualified nominees, and building persuasive legal arguments that the Court can accept without appearing to bend to political will.
So when critics ask, “What can Trump do to the Supreme Court?” the practical answer is clear: shape its composition through nominations and confirmations, pursue legislation and amendments where politically feasible, and influence the litigation record through executive action and enforcement choices. Bold slogans about immediate reversals may energize a base, but real change requires steady legal strategy and political wins.