Dennis Marek, former Supreme Court Justice, has written that the court's views may change as older Justices retire or die, and the sitting president can then nominate a successor. He notes that the current slate of Supreme Court Justices is 6-3 Republican nominees, with three appointed by George W. Bush, two by Barack Obama, one by Joe Biden, and three by Donald Trump. This aligns with the conservative side of the Court being nominated by Republican presidents, with a clear leaning to a conservative majority decision. The birthright citizenship issue is a key issue, with President Trump's focus on ending the longstanding constitutional principle that anyone born in the U.S. is an American citizen. Despite this, Marek argues that the Constitution does not directly address abortion, but the birthright Citizenship issue is clear. He also notes that Justice Samuel Alito has consistently voted consistently with a conservative position.