One of the biggest issues in the Florida GOP primary race is housing. Mitt Romney is attacking Newt Gingrich's work for the housing giant Freddie Mac. This issue is not just a political talking point though. Three years after the economic collapse, foreclosures continue to affect real people every day in an extremely personal way.

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All right, so Romney has gone on the attack in Florida, and he'll also be answering a lot of questions today about those taxes that he is releasing. As we heard from Mara, it turns out over the last few years, the effective tax rate Romney has paid is just under 15 percent.

Now, Newt Gingrich has been pressing Romney to publicly disclose the documents. And the former House speaker released his own tax returns, to dramatic effect, during a debate last Thursday.

The Brazilian state oil company has a new chief executive and her name is Maria das Gracas Foster. Petrobras is the world's fifth-largest oil producer, and Foster becomes the first woman to run a top-five oil company. This comes as the firm looks to double its production by 2020. The company's stocks surged on news of the appointment.

David Greene interviews Michael McFaul, the new U.S. Ambassador to Russia, about the future of U.S. Russia relations and the rocky reception he's been given by the pro-Putin media.

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This is MORNING EDITION from NPR News. Good morning. I'm David Greene.

RENEE MONTAGNE, HOST:

And I'm Renee Montagne.

GREENE: The latest Republican debate - last night in Florida - was more subdued than when the candidates last took the stage, in South Carolina. But still, it contained plenty of sharp jabs. After it was over, another dramatic turn in the race, with new revelations about Mitt Romney's taxes. We'll explore those numbers in depth, in a few minutes.

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DAVID GREENE, HOST:

This is MORNING EDITION, from NPR News. Good morning. I'm David Greene.

RENEE MONTAGNE, HOST:

And I'm Renee Montagne.

A string of debates and primaries has kept the Republican presidential candidates in the spotlight this election season. Tonight, it's the president's turn to take center stage. President Obama will deliver the annual State of the Union Address, and in many ways kick off his own campaign for re-election. It's a reminder that Mr. Obama is running for president.

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And our last word in business today is a pat-down throwdown. The Transportation Safety Administration says it did not detain Kentucky Senator Rand Paul. But officials at the agency did stop one of their most outspoken critics while he was going through the airport security line in Nashville yesterday.

RENEE MONTAGNE, HOST:

The Republican senator was going through a body scanner when the alarm went off. Apparently, it was an anomaly. Then, he refused to submit to a pat-down, so he was escorted out of the screening area.

Several states — including Illinois and New York — are now pushing forward with plans to offer lotteries on the Internet. That's in the aftermath of an opinion from the Justice Department, which reverses a long-standing policy and says states are free to conduct online gambling within their borders.

On Tuesday, it is likely the presidential campaign's focus will shift to Mitt Romney's tax returns, which show him making $42.5 million in 2010 and 2011. That number may be bigger than he can finesse by saying in essence: Don't hate me because I'm successful.