Delegates at the scaled-back Republican National Convention later this month in Charlotte, N.C., must wear masks, and the GOP plans to track everyone's movements with badges equipped with Bluetooth technology.

The special badges will allow officials to find out whom they came in contact with if someone later gets sick from the coronavirus, said Jeffrey Runge, the convention's health consultant.

That will make contact tracing easier, he said.

Contact tracing has been one of the key tools in the fight against the coronavirus. Now, as the virus has infected more than 5 million Americans, the U.S. has at least 41,122 contact tracers — but that's not even half what public health experts said would be needed to help contain the spread.

Updated at 6:48 p.m. ET

A California judge has ordered Uber and Lyft to reclassify their workers from independent contractors to employees with benefits, a ruling that could be consequential for gig economy workers if it survives the appeals process.

There's a winner in Sunday's presidential election in Belarus. But there's no concession from the main opposition candidate.

Svetlana Tikhanovskaya is refusing to accept the landslide victory declared by the five-term incumbent, Alexander Lukashenko.