Weeks before the 1980 census officially began, the Federation for American Immigration Reform launched its campaign to exclude unauthorized immigrants from population counts that, according to the Constitution, must include the "whole number of persons in each state." Image: Ernie Leyba/The Denver Post via Getty Images Even before taking office, former President Donald Trump's administration obsessed over the U.S. census. From a failed bid for a citizenship question to a presidential memo about unauthorized immigrants that was fast-tracked to the Supreme Court, its moves over the past four ye...