Scott Horsley

The Republican presidential contest remains fluid less than three weeks before the caucuses and primaries begin. Nationwide, nearly one in five GOP voters is still undecided. And in Iowa, candidates are making their final push before the Jan. 3 caucuses.

Former Massachusetts Gov. Mitt Romney on Friday told workers at a metal fabricating plant in Sioux City, Iowa: "I am running in this race because I understand how to get middle-class Americans prosperous again, working again, buying things, and putting more Americans back to work."

The day after the final debate before the primaries, former Massachusetts Gov. Mitt Romney campaigned in Iowa. He also picked up the endorsement of South Carolina Gov. Nikki Haley.

President Obama doesn't have to worry about winning the Jan. 3 Iowa caucuses. He's almost sure to be the only Democrat in the first-in-the-nation contest. Yet, that hasn't stopped the Obama campaign from organizing its own effort to get out the vote.

"Hi, my name is Margaret, and I'm a volunteer with President Obama's grassroots team, Organizing for America," says Margaret LaBounty during a recent phone drive.

President Obama lost a couple of economic battles on Capitol Hill on Thursday, but he is hoping to win the political war. The president vows to keep fighting for policies he says will benefit the broad middle class.

As Obama spoke to reporters in the White House briefing room, an electronic clock behind him ticked down the minutes, hours and days until year's end. That's when a payroll tax cut is due to expire, unless Congress votes to extend it.

Economic Skirmishes

President Obama will try Tuesday to follow in the footsteps of Teddy Roosevelt when he delivers an economic speech in Osawatomie, Kan., the same city where Roosevelt issued a famous call for a "New Nationalism" more than 100 years ago.

For Obama, this is a "connect-the-dots" speech. White House spokesman Jay Carney said it's a chance to show how the president's various economic proposals — from stricter banking oversight to payroll tax cuts — fit together, as Obama prepares for a re-election battle.

At NPR, we know a thing or two about promotional merchandise. After all, we invented the Nina Totin' Bag and the Carl Kasell Autograph Pillow. So, on this Black Friday, White House correspondent Scott Horsley presents the NPR guide to campaign swag.

Within the Republican presidential field, no one has talked tougher about China than Mitt Romney. He has vowed to go after that country from his first day in office, threatening to slap tariffs on Chinese imports to make up for its artificially low currency.

"We can't just sit back and let China run all over us," Romney said. "People say, 'Well, you'll start a trade war.' There's one going on right now, folks. They're stealing our jobs. And we're going to stand up to China."

President Obama has kept his distance from the supercommittee. Unlike the budget battles earlier this year, there were no bargaining sessions at the White House. No presidential motorcades to Capitol Hill.

The economy is expected to dominate all other issues in next year's presidential race. But in recent days, both the Republican candidates and President Obama have focused on foreign policy.

Republican White House hopefuls criticized President Obama's handling of Iran, Afghanistan and the Arab Spring during a debate Saturday night in South Carolina. It was the first of this year's debates in which foreign policy was the dominant topic.

Although the candidates aimed most of their firepower at the sitting president, the forum did expose some fault lines within the Republican ranks.