As Hillary Clinton has seen her lead evaporate in Iowa, and some allies are openly fretting that she could repeat her 2008 loss here, she is deploying one of her most powerful weapons - her husband.
With just more than two weeks before Iowa holds the first nominating contests of 2016, former President Clinton crisscrossed the state for rallies in metropolitan areas and rural outposts, trying to convince voters that his wife is uniquely qualified to be president now because of her experience and mettle.
“If you want to know who can rebuild the economy, deal with the social issues, stop the president’s progress from being repealed and keep the country safe, this is not a close question,” Clinton told several hundred people Saturday evening at a rally at a high school in Des Moines, accompanied by daughter Chelsea.
Hillary Clinton has hinted that should she win the 2016 presidential race, her husband, former President Clinton, could have a role in her administration.
"It will start at the kitchen table. We will see how it goes from there," Clinton said in Sunday night's debate, drawing a loud applause.
"When it comes to the economy and what was accomplished under my husband's leadership in the '90s ... you bet I'm going to ask for his leadership. I'm going to ask for his advice and I'm going to use him as a goodwill emissary to go around the country," she added.
Pressed on Sunday night to complain about former President Clinton's extramarital affairs while commander in chief, Bernie Sanders instead pivoted to grouse about the media and label the inquiry all but a "gotcha" question.
"I cannot walk down the street without being told how much I have to attack Hillary," he said. He called Bill Clinton’s behavior “deplorable,” but said he was committed to debating Hillary Clinton on the issues.
It's not the first time Sanders has criticized campaign coverage. He's been complaining since the beginning of his White House run:
Hillary Clinton sharpened her long-running attack on Bernie Sanders for championing an agenda that includes tax increases on middle-class families to pay for all the new government programs he is proposing.
“There are serious questions about how we are going to pay for what we want our country to do,” she said. “I am the only candidate standing here tonight who has said I will not raise taxes on the middle class. I want to raise incomes, not taxes.”
For Republicans including front-runner Donald Trump, climate change is nothing more than a hoax. But for the Democratic presidential hopefuls onstage Sunday night in South Carolina, the effects of climate change are real.
"I was home in Burlington, Vt., on Christmas Eve. The temperature was 65 degrees. People in Vermont know what's going on; people who did ice fishing where their ice is no longer there on the lake understand what's going on," said Vermont Sen. Bernie Sanders. "The debate is over. Climate change is real."
He accused Republicans of being "owned by the fossil fuel industry."
Hillary Clinton and Bernie Sanders both praised the landmark nuclear deal with Iran during Sunday's debate but cautioned that it does not mean the doors have been thrown wide open on newly close relations with the Islamic republic.
Clinton said the new sanctions that the Obama administration slapped on Iran on Sunday, unrelated to its nuclear program, showed that there are several knotty problems the two countries are staring down as they edge toward a new relationship after decades of acrimony.
"I was responsible for getting those sanctions imposed," Clinton said, referring to her time as President Obama's top diplomat.
During Sunday's debate, Hillary Clinton targeted Bernie Sanders' refusal to provide details on how his healthcare plan would be funded until two hours before the debate.
“When talking about healthcare, details really matter and therefore we have been raising questions,” she said. “He didn’t like that, his campaign didn’t like it either and tonight he’s come out with a new plan.”
Although Hillary Clinton and Bernie Sanders both want healthcare for all, they have repeatedly clashed over the best way to reach that goal.
They went at it again during Sunday's debate, when Sanders defended his vision for a new universal healthcare system.
Sanders has proposed what's known as a single-payer system, in which the federal government would essentially act as the country's insurance company. That's similar to how healthcare works in Canada and some European countries, and the Vermont senator said it will help drive down costs and ensure everyone receives medical coverage.