Computers analyze such data to look for patterns that might not be obvious, a technique a whistleblower says was used to learn about individuals and create an information cocoon to change their perceptions about the 2016 election.
The Supreme Court and a federal panel reject Republican challenges to a newly redrawn congressional map imposed on Pennsylvania by the state's high court.
Cybersecurity experts say it's crucial that states shore up vulnerabilities in election systems now, with midterm campaigns underway and the 2020 presidential election on the horizon.
Albert Wong's skill as a marksman led to dangerous missions in Afghanistan that left him anxious and wary when he came home, according to people who knew him.
The first large-scale, coordinated demonstration is planned for Wednesday when, at the urging of organizers of the Women's March, there will be a 17-minute student walkout, one minute for each of the victims killed in Florida.
The term has become ubiquitous as a signal to a politician's supporters to ignore legitimate reporting, as a smear of the local press corps, and as a way for conservatives to push back against what they call biased stories.
Although the U.S. has no formal policy on the issue, administration officials have said they separate parents and children to deter others from trying to illegally enter the U.S.
Few schools show any indication that they will follow the lead of businesses that are cutting ties with the National Rifle Association following last month's massacre.
Nikolas Cruz's public defender says his client will plead guilty if prosecutors take the death penalty off the table, which would mean a life sentence in prison.