Race and ethnicity

Rich Barnes-USA TODAY Sports

Presidential hopeful Pete Buttigieg, Mayor of South Bend, Ind., holds a conversation with Dr. Adrienne Jones, right, at Morehouse College on Monday, Nov. 18, 2019, in Atlanta. (Curtis Compton/Atlanta Journal-Constitution via AP)

FILE - In this Feb. 26, 2019, file photo, former New York City Mayor Michael Bloomberg speaks at a news conference at a gun control advocacy event in Las Vegas. Tennessee’s top election officials say Bloomberg has requested a petition that would require securing 2,500 signatures from registered voters in less than a month if he wants to qualify for the state’s Democratic presidential primary ballot. The secretary of state’s office confirmed Wednesday, Nov. 13, that Bloomberg requested the ballot petition earlier this week. (AP Photo/John Locher, File)

FILE - In this Feb. 26, 2019, file photo, former New York City Mayor Michael Bloomberg speaks at a news conference at a gun control advocacy event in Las Vegas. Tennessee’s top election officials say Bloomberg has requested a petition that would require securing 2,500 signatures from registered voters in less than a month if he wants to qualify for the state’s Democratic presidential primary ballot. The secretary of state’s office confirmed Wednesday, Nov. 13, that Bloomberg requested the ballot petition earlier this week. (AP Photo/John Locher, File)

FILE - In this Thursday, Sept. 26, 2019, file photo, former U.S. Sen. Harry Reid speaks with the media before a panel discussion in Las Vegas. Reid says that while Iowa and New Hampshire get to weigh in first on the Democratic presidential contest in 2020, the states do not have enough racial diversity to offer any insight into how a candidate will fare across the country. (AP Photo/John Locher, File)

Louisiana Gov. John Bel Edwards arrives to address supporters at his election night watch party in Baton Rouge, La., Saturday, Nov. 16, 2019. (AP Photo/Matthew Hinton)

FILE - In this Sept. 23, 2017 file photo, will.i.am attends the 27th annual EMA Awards at Barker Hangar in Santa Monica, Calif. The Black Eyed Peas musician has accused a flight attendant from Australia’s national carrier Qantas of being racist and rude to him on a flight. The musician said he was met by police at Sydney Airport on Saturday, Nov. 16, 2019, after an incident with an “overly aggressive flight attendant” who he says was upset with him because he couldn’t hear her through his noise-cancelling headphones. Qantas said in a statement it rejected the allegation that the incident had anything to do with race and said it was a “misunderstanding.” (Photo by Richard Shotwell/Invision/AP, File)

Sri Lanka's former Defense Secretary and presidential candidate Gotabaya Rajapaksa, center, leaves a polling station after casting his vote in Embuldeniya, on the outskirts of Colombo, Sri Lanka, Saturday, Nov. 16, 2019. Polls opened in Sri Lanka’s presidential election Saturday after weeks of campaigning that largely focused on national security and religious extremism in the backdrop of the deadly Islamic State-inspired suicide bomb attacks on Easter Sunday. (AP Photo/Eranga Jayawardena)

Members of the South African Cabin Crew Association and the National Union of Metalworkers of South Africa members picket at the SAA Airways Park in Kempton Park, South Africa, Friday, Nov. 15, 2019. South Africa's troubled state-owned airline has begun canceling flights after two unions announced their workers would go on strike to protest nearly 1,000 expected job cuts. (AP Photo/Themba Hadebe)

Britain's Labour Party Jeremy Corbyn meets former miner John Kane at the National Mining Museum at the former Lady Victoria Colliery in Newtongrange, Scotland, Thursday Nov, 14, 2019, on the General Election campaign trail. (Jane Barlow/PA via AP)