A decision to send Solicitor General John Sauer to defend an executive order signed by Donald Trump before the Supreme Court this week was a massive mistake that could haunt the president going forward.

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

The Supreme Court has heard its first set of Trump-related arguments in the second Trump presidency. The case stems from the executive order President Donald Trump issued on his first day in office that would deny citizenship to children born on U.