Tonight’s second Republican debate among presidential hopefuls is – once again – all about Donald Trump. The latest poll shows support for him on the rise as confidence fades in expected frontrunners like Jeb Bush and Scott Walker. Those watching will be looking at Jeb Bush or Carly Fiorina to pounce on Trump’s vague policy ideas and shut down his knack for sucking up all the oxygen in the room. That will require a complete redo by the rest of the Republican field, most of whom have proven unable to call out Trump for what some observers say he is: a bully.