President Trump attempted to clarify his position on white supremacists after a litany of members of his own party urged him to more clearly condemn the right wing group known as The Proud Boys, whom he told to "stand back and stand by" in Tuesday night's first presidential debate.

The president told reporters at the White House that he doesn't know who the Proud Boys are, but said they should "stand down" and let law enforcement do their work.

"I don't know who the Proud Boys are, you'll have to give me a definition," he said.

A new generation of faster, cheaper coronavirus tests is starting to hit the market. And some experts say these technologies could finally give the U.S. the ability to adopt a new, more effective testing strategy.

"On the horizon — the not too distant horizon — there are a whole series of testing modalities coming on line," says Dr. Ashish Jha, dean of the Brown School of Public Health. "And that gives us hope we can really expand our testing capacity in the nation."

At the end of a dirt road in New York's Adirondack Mountains, endurance athlete Alyssa Godesky switches on her headlamp. It's 4 a.m. when Godesky begins what will be the first of three and a half days of scrambling up rocky trails and bushwhacking through thick forests.

Godesky is one of thousands of runners chasing down speed records in the mountains since the start of the coronavirus pandemic. With all the major races canceled this year, more athletes are measuring themselves against the clock, attempting to set what are known as Fastest Known Times.

Back in early spring, Khristan Yates worked as a quality assurance analyst at a marketing company and loved her job. "I had one of the best jobs of my career," recalls Yates, 31, a resident of Chicago.

Yates, who's a mother of two children, had moved into a bigger apartment just before the pandemic hit because she wanted to give her kids more space. At the time, she felt like she was "at the top of her world."

But as the economic effects of the pandemic hit the marketing industry among others, she lost her job in May.

President Trump's hesitation, once again, to denounce white supremacy during Tuesday's presidential debate is drawing quick condemnation from anti-racism activists — as are his unusual comments directed at a white supremacist group called the Proud Boys.

During an exchange on the debate stage, moderator Chris Wallace repeatedly asked Trump if he would condemn white supremacists. Trump initially sidestepped that question, claiming that he mostly sees violence "from the left wing."

This was maybe the worst presidential debate in American history.

If this was supposed to be a boxing match, it instead turned into President Trump jumping on the ropes, refusing to come down, the referee trying to coax him off, and Joe Biden standing in the middle of the ring with his gloves on and a confused look on his face.

Trump doesn't play by anyone's rules, even those he's agreed to beforehand. He's prided himself on that. But even by his standards, what Trump did Tuesday night crossed many lines.