The U.S. Supreme Court takes up a case probing the limits of presidential powers as the justices weigh whether President Barack Obama overstepped his authority with unilateral action to protect millions of people in the country illegally from deportation.
The case, pitting Obama against 26 states led by Texas that filed suit to block his 2014 immigration plan.
His plan, tailored to let roughly 4 million people those who have lived illegally in the U.S. get into a program that shields them from deportation and supplies work permits.
