Republican Sen. Bill Cassidy of Louisiana is fighting for his political life in Saturday's primary against a challenger endorsed by President Donald Trump. Cassidy has sought to portray U.S. Rep. Julia Letlow as out of step with the party's views. Cassidy voted in favor of conviction after T… Read morePolls close in Louisiana Republican primary as Trump backs challenger to Sen. Bill Cassidy

North America’s largest commuter rail system has shut down after unionized workers went on strike. The Long Island Rail Road in New York ceased operations early Saturday morning as five unions representing about half its workforce walked off the job. The two sides have been negotiating for m… Read moreNorth America’s largest commuter rail system shuts down as workers strike

The USS Gerald R. Ford has returned home to Virginia. The world's largest aircraft carrier is back in port at Naval Station Norfolk after an 11-month deployment. That's the longest since the Vietnam War. The Ford supported the U.S. war with Iran and the capture of Nicolás Maduro when he was … Read moreUSS Ford returns home after 11-month deployment supporting the Iran war and Maduro's capture

Deciding when to get a routine mammogram is confusing. Guidelines disagree on whether to begin at age 40, 45 or 50, and whether a yearly or every-other-year scan is best. New research aims to one day help tailor advice by using genetics and other factors to determine whether a woman's risk o… Read moreWhen should you get a mammogram? Conflicting advice makes it hard to know

Walmart and Amazon are racing to speed up order deliveries in rural areas of the U.S. Small cities and towns are a rich source of untapped sales for whichever retailer builds a loyal base of online shoppers. Analysts at investment bank Morgan Stanley estimate the underserved market could be … Read moreWalmart and Amazon race to win over rural America with speedier deliveries