A new mobile voting center is cruising through Santa Cruz, Calif., this election season. It's especially important for people who lost their homes in recent wildfires.

These are the 13 races that will determine control of the Senate in the next Congress. To win control, Democrats would need to net-gain four seats, or three seats plus control of the White House.

President Trump promised to end America's opioid crisis. On his watch overdose deaths flattened in 2018 then surged again to record levels.

If no clear winner emerges on election night, experts in global conflict warn that protesters and counter-protesters could clash in the streets, making conditions ripe for potential violence.