A group of Democratic-led states urged a federal judge in Boston on Friday to deal another blow to President Donald Trump's attempts to limit birthright citizenship, even though a U.S. Supreme Court decision last month made it more difficult for lower courts to block White House directives.

A federal judge who previously blocked President Donald Trump’s effort to end birthright citizenship spent more than an hour Friday grappling with whether his nationwide injunction could stand after the Supreme Court curbed the ability of judges to issue such broad rulings.

President Donald Trump's plan to end birthright citizenship for the children of people who are in the U.S. illegally will remain blocked as an order from one judge went into effect Friday and another seemed inclined to follow suit.