FILE - In this April 5, 2019 file photo, President Donald Trump participates in a roundtable on immigration and border security at the U.S. Border Patrol Calexico Station in Calexico, Calif. A federal judge is expected to decide Friday, May 24, 2019 whether to block the White House from spending billions of dollars to build a wall on the Mexican border with money secured under President Donald Trump's declaration of a national emergency. California and 19 other states, along with environmentalists, civil liberties groups and communities along the border, are seeking a temporary injunction to halt construction plans.(AP Photo/Jacquelyn Martin, File)