Donald Trump's contention that he can legally fire anyone employed by the federal government despite a 90-year Supreme Court ruling could be validated by the current conservative majority on the court which would be "disastrous" according to one court watcher.

As it pushes to implement a plan to end birthright citizenship, the Trump administration is counting on an argument about out-of-control federal judges to prove irresistible to some Supreme Court conservatives.

The Trump administration Thursday called on the U.S. Supreme Court to limit the scope of three nationwide injunctions from lower courts against the president’s executive order ending the constitutional right to birthright citizenship.