The Latest: Rubio honing positive message before caucuses

Here are the latest developments from the 2016 race for president, one week out from the Iowa caucuses. All times local. 3:25 p.m. Florida Sen. Marco Rubio says the 2016 election is "not just about beating up on other Republicans," but ultimately about bringing the party together.Olin Clayton of Des Moines, Iowa, arrives at the United Steelworkers Local 310L union hall to listen to Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., speak, Tuesday, Jan. 26, 2016, in Des Moines, Iowa. (AP Photo/Charlie Neibergall) Rubio is honing a largely positive closing message with Iowa Republican caucus voters during a robust day of campaigning six days before the leadoff 2016 contest. He says...