President Donald Trump's sweeping assertions of executive power during his first weeks back in office appear headed toward U.S. Supreme Court showdowns, but it remains an open question whether or how much the justices might act to check his authority.

While it was once rare for an administration to change its position in cases before the high court, Trump did so in his first term and has signaled he will do it again.

A federal judge who already questioned the constitutionality of President Donald Trump’s birthright citizenship executive order is set to hear arguments over a longer-term pause of the directive