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Some of the technology behind coronavirus vaccine development dates back to the first vaccines; other techniques are much newer. Here are eight top strategies scientists are pursuing.

New Mexico Gov. Michelle Lujan Grisham and Michigan Gov. Gretchen Whitmer are among those thought to be on Joe Biden's vice presidential shortlist.

This pandemic is like war, and federal, state and local health officers are leading the U.S. response. Yet unlike war heroes, who are lionized, they are facing unprecedented attacks and death threats.

Joe Biden increased his delegate lead with the March 10 primaries, and a top Democratic super PAC concluded he's on track for the nomination. Bernie Sanders didn't say what's next for him.

Treasury Secretary Steven Mnuchin said discussions included payments to small businesses, loan guarantees for industries like airlines and hotels, and a stimulus package for workers.

The Earth's entire land mass is being photographed by satellites every single day. Trying to make sense of all these images falls to a U.S. spy agency many have never heard of.

Local data reveal a deeper picture of where the current hot spots are in the United States — and where new ones could surface.

Nancy Beck is the Trump administration's nominee to lead the Consumer Product Safety Commission for a seven-year term. Many scientists and public health experts warn she is a dangerous choice.

NPR's Ailsa Chang speaks with Antonio Alarcon, one of the plaintiffs in the Supreme Court's DACA case, about the court's ruling Thursday.

Bloomberg is skipping all of the early states and banking instead on proving his campaign's viability by doing well on Super Tuesday, when 14 states vote on March 3.