MILWAUKEE (AP) — The Republican presidential candidates are debating for the fourth time in the 2016 nomination contest, this time in Milwaukee, as they compete to narrow down the wide-open contest.
Here are the latest developments (all times local):
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4:44 p.m.
GOP presidential candidate Ben Carson is trying to move on from scrutiny over his autobiography.
Just ahead of the debate Tuesday, Carson’s Twitter team posted a video filmed on his way to the venue in Milwaukee.
In it, Carson says: “It really is not about me, it’s about America. It’s about what are we going to do for the kids, for the next generations. And I think if we start working together and stop allowing the purveyors of division to prevail, we’re going to be just fine because we are the United States of America.”
Carson has generally avoided criticizing his rivals in previous debates.
But his rivals have not been shy about taking shots at Carson. Billionaire developer Donald Trump has pointedly listed the questions about Carson’s claims about what he has described as a violent past. Trump and Carson are the leaders in the wide-open contest for the Republican presidential nomination and will be standing next to each other at center stage Tuesday night.
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4:23 p.m.
GOP presidential candidate Sen. Marco Rubio (R-FL) is getting debate night help from a new political group called “Baby Got PAC.”
That’s a super PAC funded by John Jordan, a wealthy California winery owner, and named after a popular 1990s song by rapper Sir Mix-A-Lot.
He and Rick Wilson, a Florida Republican admaker, put together a 60-second commercial that will air Tuesday on Fox News channels, including Fox Business News, which is co-hosting the GOP debate in Milwaukee.
The spot compliments other Republican presidential hopefuls but promotes Rubio as the strongest potential opponent to Democratic frontrunner Hillary Rodham Clinton. The ad quotes media reports that Clinton supporters — including former President Bill Clinton — view the 44-year-old Florida senator as her toughest potential general election opponent in a field of 15 candidates.
Jordan formed his own super PAC to spend money on the presidential race, and is putting up roughly $100,000 of his own money. He said other donors have already expressed interest in helping out, and he has several other ads already prepared. Super political action committees can take unlimited amounts of money from contributors but cannot coordinate with the candidates they seek to help.
Asked about the PAC’s name, Jordan says: “You have to be different to stand out. Why not have a little fun with it?”

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