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.

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.

During Thursday morning's Supreme Court hearing, conservative Justice Neil Gorsuch offered praise for liberal Justice Elena Kagan's questions as the highest court heard oral arguments Thursday on whether lower courts have the power to stop President Donald Trump's plan to drastically change birthright citizenship.