A federal judge is set to hear the first arguments in a multi-state lawsuit seeking to block President Donald Trump’s executive order ending the constitutional guarantee of birthright citizenship regardless of the parents' immigration status.

Brown on Tuesday announced a lawsuit targeting Trump’s executive order that aims to end birthright citizenship. Washington’s new AG, who was sworn in last week, decried the directive as “unconstitutional,” “cruel” and “simply un-American.”

Washington state is suing the Trump administration over the president's executive order to end birthright citizenship, with Arizona, Oregon, and Illinois joining the lawsuit. Why it matters: The legal challenge,