The Justices on the Supreme Court wrestled on Thursday with a high-stakes case involving birthright citizenship that’s poised to shape both the Trump Administration’s immigration policy and its attempts to expand presidential power.

Supreme Court Justice Brett Kavanaugh launched a series of pointed questions at a Trump administration lawyer about the president’s plan to end birthright citizenship. The shockingly blunt approach during oral arguments Thursday signaled an apparent opposition to the administration’s arguments.

The administration’s top lawyer is telling the court it doesn’t believe it has to comply with lower court orders in all circumstances.

Justices sharply questioned Solicitor General D. John Sauer over the president's bid to end birthright citizenship and limit nationwide injunctions.

Justice Kagan blasted U.S. Solicitor General John Sauer on the birthright citizenship executive order— which she noted has yet to succeed in any federal court, including cases heard by Trump-appointed judges.