The move comes just weeks after the Supreme Court struck down his first attempt to curb the 14th Amendment, which has guaranteed citizenship to almost all people born in the US since 1868. Second Attempt After Stinging Court DefeatSigned in Washington on Thursday, the orders mark Trump's latest effort to test the boundaries of the constitutional guarantee. They follow a heavy defeat for the White House in June, when a divided Supreme Court reaffirmed that the 14th Amendment grants citizenship to virtually everyone born on American soil, including children of undocumented immigrants. The administration says the birth tourism order draws on presidential authority under the Immigration and Nationality Act to regulate international travel. He predicted the orders would meet the same fate as their predecessor, tied up and ultimately defeated in the courts.