Much of President Donald Trump’s second term has focused on changes to the nation’s capital. But his ambitions to remake the physical architecture of the presidency transcend Washington: Trump wants to transform his West Palm Beach golf club into a presidential retreat modeled after Camp David. The plan calls for a parcel of the private club to be designated a permanent, official sanctuary for foreign leaders and future U.S. presidents, designed to host international summits and house presidents when they take vacations in Florida, according to a proposal presented to Palm Beach County officials by Trump International Golf Club’s legal...