Rep. Wexton endorses Joe Biden before Virginia primary  —  Rep. Jennifer Wexton (D-Va.) on Sunday endorsed former vice president Joe Biden for the Democratic presidential nomination, changing her decision to stay neutral in the race two days before the Virginia primary on Super Tuesday.

Biden's surprise ray of hope in California  —  SACRAMENTO, Calif. — Despite Joe Biden's weak polling in California, there's a silver lining emerging for him in the biggest delegate prize on the board this week.  —  Biden's weakness after a distant second finish in Nevada could have compelled Californians …

Coronavirus Spreads in U.S., as Rhode Island Confirms State's First Case  —  The Rhode Island patient, the 25th confirmed local case in the U.S., is a person in their 40s who had traveled to Italy in mid-February  —  Rhode Island health officials confirmed the state's first case of coronavirus on Sunday …

He Drove Her to the Hospital.  She Gave Him the Coronavirus.  —  Taxi and bus drivers are on the forefront of the spread of the coronavirus in Asia, even as a tourism downturn hurts their business.  —  BANGKOK — The Chinese woman hailed the cab and said she wanted to go to the hospital.

Coronavirus May Have Spread in U.S. for Weeks, Gene Sequencing Suggests  —  Two cases detected weeks apart in Washington State had genetic links, suggesting that many more people in the area may be infected.  —  Researchers who have examined the genomes of two coronavirus infections …