He's back! President Obama has emerged from his supposed cloistered life to attack President Trump. Obama broke with a tradition apparently only modern Republican ex-presidents follow, which is not to speak ill of your successor.Obama, who reportedly has been running his "Organizing for America" operation, along with his White House aide Valerie Jarrett from his expensive home in a Washington neighborhood, spoke to a group of University of Illinois students last Friday, claiming it was his policies, not those of President Trump, that have produced the current economic boom."When you hear how great the economy's doing right now, let's...