Editorial: A Trump troop ‘surge’ into cities that is all about politics and nothing about safety

President Donald Trump is dispatching the feds to more American cities, where he claims feckless Democrats in thrall to “the extreme radical left” are letting neighborhoods spiral out of control. “For decades,” he says, those running America’s big cities have put the rights of criminals before the rights of ordinary citizens. Of course, over those same decades, those same mayors, almost all …