Fifteen states and the District of Columbia filed a lawsuit Wednesday against President Trump’s decision to roll back the previous administration’s Deferred Action for Childhood Arrivals (DACA) program. “The president has made numerous statements on the campaign trail and in office disparaging Mexicans,” Washington State Attorney General Bob Ferguson said in announcing the suit. “We allege the president’s own statements make clear that DREAMers are being targeted based on their national origin.” About 4 in 5 people covered under the DACA program are from Mexico and Central American countries. Targeting a group of people for certain treatment because of their national origin would violate the Constitution’s equal protection clause, Ferguson said.