See which 2020 presidential candidate has raised the most money, who has spent the most, where a candidate's funding comes from — and how the Democrats stack up against President Trump.

Newly released revisions to a well-respected COVID-19 model translates into good news for the United States. The number of Americans expected to die from the coronavirus has been lowered.

Wondering how bad the coronavirus crisis is going to get where you live? New modeling offers state-by-state projections.

NPR reached out to the public health departments serving some of the largest cities in the U.S. Most did not have their most current pandemic response plan posted publicly and many were out of date.

Candidates need 1,991 delegates to become the Democratic Party's nominee and face President Trump in November. Here's where the candidates stand so far in the primaries.

An NPR analysis of 1,200 counties across five key demographics offers a first look at how a diverse swath of the country is voting so far in the Democratic presidential primary race.

Now that the House has impeached President Trump, the process shifts to the Senate, which will vote on whether to convict him. Here is your guide to the steps and the people that matter.

New survey data show an estimated 5 million teens use e-cigarettes and nearly 1 million use them daily. Here's more on their favorite brands and flavors.

The House of Representatives voted on Oct. 31 to formalize its impeachment inquiry into President Trump. Here is what Democrats said on the record ahead of that vote.

Social media networks banned hundreds of thousands of accounts last month. In NPR's assessment of the data, telling details begin to depict large disinformation campaigns.

Trees are one of the best ways to fight deadly urban heat, but U.S. cities lose millions every year. And many low-income areas are starting at a disadvantage.

Hotter neighborhoods tend to be poorer in dozens of major U.S. cities. That extra heat can have serious health effects for those living there.

For the first time, President Trump is spending more on staff than Barack Obama did during his final year as president.

Bipartisan negotiators are working on a border security funding deal — but both sides are still sorting out what kind of "wall" or "barrier" is in and whether President Trump will sign it.

The maker of controversial e-cigarettes spent $750,000 on lobbying during the last three months of 2018, a dramatic increase over $210,000 it spent in the second quarter of the year.

Low pay combined with a high cost of living make it even more of a challenge for those who suddenly find themselves without a paycheck.

The Trump administration says there is a national security crisis at the Southern border. But most people in the country illegally didn't sneak across the border; they overstayed their visas.

The 116th Congress has 127 female members — 102 of them in the House. That's far more than the previous record, but it also is far from gender parity.

Even as public distaste for gerrymandering led to a wave of successful ballot initiatives this fall, plenty of lawmakers are still trying to make sure they control how political boundaries are drawn.

New research shared exclusively with NPR suggests that Pyongyang is refining its weapons technology through open scientific research. China leads the way in scientific collaboration with North Korea.