DONALD TRUMP is making good on his threats. During his presidential campaign and first few months in office the president and his advisers suggested that they would retaliate against cities that resist the mass deportation of illegal immigrants. On June 7th Mr Trump ordered at least 2,000 National Guard troops to Los Angeles to quell protests that had taken place across the region for two days following several immigration raids, and the disorder that followed. The move is ostensibly meant to restore peace. But it is also a thinly-veiled message to Democratic-run places that retribution awaits those who would stand between immigrants and the administration’s deportation machine.