Domenico Montanaro

One of the hardest decisions for any candidate is whether to drop out of a race. It's even harder for the Vermont senator, who, at 78, likely wouldn't run for president again.

There are lots of questions about the novel coronavirus that we try to answer, including whether we should wear masks, if the U.S. is testing enough and if there's a drug that can treat COVID-19.

The Trump administration decided against opening special window for Affordable Care Act sign ups. "It's like they're twisting themselves into pretzels to avoid anything" Obamacare, said one.

During his briefing with the coronavirus task force on Thursday, President Trump once again inaccurately described the per capita testing within the United States.

Amid the pandemic, President Trump's approval rating has risen, but it's not the kind of increase other presidents have seen in other rally-around-the-flag moments.

President Trump and other U.S. officials touted Tuesday that the United States had surpassed South Korea in total coronavirus tests. But South Korea is far outpacing the U.S. per capita.

This coronavirus is novel, meaning how it will manifest is still unclear. About 0.1% who get flu die. It's estimated that about 1% of those who have gotten coronavirus have died from it.

"No one knows what's going to happen in July, so we're just not there yet," a DNC spokesperson said.

Bernie Sanders says he's reassessing his campaign for president after another string of losses to Joe Biden in Democratic primaries.

Former Vice President Joe Biden won the Florida, Illinois and Arizona Democratic primaries all by double digits Tuesday. And he's building a delegate lead that may very well be insurmountable.

Coronavirus is dominating. Three of four crucial states are going ahead with elections Tuesday that could determine the Democratic presidential nominee.

After the White House downplayed the coronavirus threat in the past month, the number of Republicans saying it has been blown out of proportion jumped, according to an NPR/PBS NewsHour/Marist poll.

The first one-on-one debate between the two men was supposed to be in Arizona, one of four states voting in the Democratic presidential primaries Tuesday. But it took place in a TV studio instead.

The coronavirus outbreak is having an impact on politics. On Capitol Hill, Democrats and Republicans are working to address the crisis, and presidential candidates have cut back on campaign events.

The former vice president's win in Michigan, in particular, has solidified Biden's place as the front-runner to be the Democratic nominee.

Tuesday's contests offer 352 delegates among six states. Michigan is the biggest prize, and it could be another pivot point in this Democratic primary.

Now that the presidential primary season is well underway, the picture is getting clearer for Democrats. More state primaries are to come — including Missouri and Michigan next Tuesday.

The presidential nominating contest is really a game of math: Which candidate can rack up the most delegates before the Party's convention? Here's how those delegates are awarded.

It was a surprise result for the former vice president, who won a majority of states on Super Tuesday. He rode a wave of momentum that may have catapulted him back into front-runner status.

In the Super Tuesday primary elections, polls have closed in Vermont, Virginia and North Carolina. Here are the latest results, and a reaction from the Bernie Sanders campaign.