Only hours after being sworn into office, President Donald Trump issued an executive order that would end birthright citizenship. Can he do that?

A federal judge blocked Donald Trump's administration on Thursday from implementing the Republican president's executive order curtailing the right to automatic birthright citizenship in the United States,

A federal judge Thursday blocked President Donald Trump’s executive order outlawing birthright citizenship—the policy automatically giving citizenship to anyone born in the U.S.—and declared it “blatantly unconstitutional,