President Trump’s immigration policy, like most of his foreign policy, is saturated with references to his campaign slogan “America First,” and a federal judge this week said it shows illegal and racist “animus” toward immigrants.Judge Edward Chen blocked the Department of Homeland Security from revoking a special deportation amnesty for hundreds of thousands of Venezuelan migrants, at least in part because Secretary Kristi Noem justified the decision by citing Mr. Trump’s “America First” agenda. Judge Chen, an Obama appointee to the court in Northern California, said the term had an “inference of animus given the historical connotation of that phrase.”...