MILWAUKEE, Wisconsin — Barack Obama 2016, apparently.Tying Iowa and winning New Hampshire is nothing next to the feat Bernie Sanders has now pulled off: Making Hillary Clinton hug Obama closer than she ever wanted to, and driving Obama loyalists so crazy that they’ve become devoted to her.Now the guy Clinton ran against in 2008 and Sanders talked about running against in 2012 has become the one they’re both running to in the fight for core Democrats — particularly African Americans — in the expanded primary campaign.You could see it on the debate stage on Thursday night, when Clinton treated a rather innocuous Bernie book blurb like it was the equivalent of the kiss of Judas — a move Sanders said was a “low blow.” (“One of us ran against Barack Obama,” he shot back, in one of the debate’s more memorable lines.