Traci Mumford

He's also worried that billionaires will simply leave, leading to longer-term tax losses.

He said it would be one thing if the tax was national, but, quote, it's another when you're competing against 49 other states.

The founders of Google have started cutting ties to California.

So has the venture capitalist Peter Thiel.

But at least one billionaire says he's not bothered by it.

Jensen Wong, the chief executive of NVIDIA and one of the world's wealthiest people, was asked about the potential wealth tax on Bloomberg television this month.

He said he was perfectly fine with the proposal.

And finally, Claudette Colvin, who refused to give up her seat on a bus in Montgomery, Alabama, months before Rosa Parks did the same, galvanizing the civil rights movement, has died at 86.

Colvin was just 15 years old in 1955 when she defied repeated orders to move on the segregated bus.

She described the moment a few years ago in an interview with Michelle Norris.

Colvin was arrested, quickly convicted in juvenile court, and given a fine and probation.

While her case made headlines, local civil rights leaders decided not to make Colvin their symbol of discrimination.

Instead, they waited and rallied around Parks when she was arrested for taking a similar stand.

Colvin later said it was because she was too dark-skinned and too poor to win the support of Montgomery's black middle class.

Colvin went on to become a star witness in a crucial court case that paved the way for the end of segregation on public transit across the entire U.S.,

She kept relatively quiet about her own story until years after it happened.

She told the Times she changed her mind after she realized she could potentially help kids better understand the civil rights movement.

Quote, young people think Rosa Parks just sat down on a bus and ended segregation, but that wasn't the case at all.

Those are the headlines.

I'm Tracy Mumford.