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.

President Donald Trump has faced several setbacks from federal courts, which have blocked or paused some of his most controversial plans since taking office

Now the question is whether the court rulings are a mere speed bump or an insurmountable roadblock for the Republican president.