Hoping to kill a lure for illegal immigrants, top Trump administration officials are rallying behind the E-Verify system that requires employers to hire only legal U.S. workers or face a fine. The heads of the Social Security Administration and Immigration and Customs Enforcement have endorsed the mandatory national use of the voluntary system as a way to curb illegal immigration and cut identity theft. “I think that we need to look at E-Verify. I think E-Verify is a necessary tool because illegal employment is a magnet that pulls people into this country. So I think E-Verify should be mandated in...