HONOLULU (AP) — With an eye on the 2012 campaign, President Barack Obama is wrapping up a low-key Hawaiian vacation and planning to quickly get back in front of voters as he ratchets up his bid for re-election. The president and his family are scheduled to leave the island of Oahu Monday evening after a 10-day vacation. Air Force One will touch down in Washington Tuesday morning, just hours before Republican presidential candidates square off in the Iowa caucuses, the first nominating contest of the 2012 campaign. After more than a week out of the spotlight, Obama plans to make...