Caucuses

In this image from video, former first lady Michelle Obama speaks during the first night of the Democratic National Convention on Monday, Aug. 17, 2020. (Democratic National Convention via AP)

FILE - In This Nov. 20, 2019, file photo, Chair of the Democratic National Committee, Tom Perez, speaks before a Democratic presidential primary debate, in Atlanta. The Nevada caucuses pose a new test for Democratic National Committee Chairman Tom Perez, as the Democratic party leader tries to keep a messy primary season from devolving into chaos.  Perez predicts a smoother process Saturday than the Feb. 3 debacle in the Iowa caucuses, where results have yet to be certified. But Perez warns that the Nevada caucuses are just the next step in what could be a long, bruising primary season.  (AP Photo/John Bazemore, File)

Democratic Party of Hawaii staff tabulate presidential primary ballots in Honolulu on Friday, May 22, 2020. The Democratic Party of Hawaii is scheduled Saturday to release the results of its party-run presidential primary which was delayed by more than a month due the coronavirus pandemic. The party expected most members to vote by mail and some to cast ballots at about 20 in-person polling sites. But concerns about the virus forced the party to cancel in-person voting and allow only mail ballots. (AP Photo/Caleb Jones)

FILE - In this March 12, 2020, file photo Democratic presidential candidate former Vice President Joe Biden speaks about the coronavirus in Wilmington, Del. (AP Photo/Matt Rourke, File)

FILE - In this Oct. 24, 2019, file photo members of the Congressional Black Caucus gather for a memorial ceremony for the late Maryland Rep. Elijah Cummings, at the Capitol in Washington. From left are Rep. Joe Neguse, D-Colo., Rep. John Lewis, D-Ga., Rep. Robin Kelly, D-Ill., Rep. Gwen Moore, D-Wis., Rep. Gregory Meeks, D-N.Y., and Rep. Barbara Lee, D-Calif. The Congressional Black Caucus PAC is endorsing Joe Biden’s presidential bid, further cementing his support among the nation’s influential black political leadership. Black voters have long anchored the former vice president’s White House bid with decisive wins in South Carolina and on Super Tuesday. The chairman of the Congressional Black Caucus political action committee is New York congressman Gregory Meeks, who tells The Associated Press there’s “no question” Biden is the right person to lead the country.(AP Photo/J. Scott Applewhite, File)

Former Vice President Joe Biden, left, and Sen. Bernie Sanders, I-Vt., right, greet each other before they participate in a Democratic presidential primary debate at CNN Studios in Washington, Sunday, March 15, 2020. (AP Photo/Evan Vucci)

Democratic presidential candidate former Vice President Joe Biden speaks to members of the press at the National Constitution Center in Philadelphia, Tuesday, March 10, 2020. (AP Photo/Matt Rourke)

Voters wait in line for the North Dakota Democratic presidential caucus outside a union hall in Fargo, N.D., on Tuesday, March 10, 2020. The strong turnout forced party officials to bring in extra equipment and volunteers. (AP Photo/Dave Kolpack)

Democratic presidential candidate former South Bend, Ind., Mayor Pete Buttigieg, center, takes park in a roundtable discussing health equity with Stephania Priester, left, and Jalen Elrod, right, Thursday, Feb. 27, 2020, at the Nicholtown Missionary Baptist Church in Greenville, S.C. (AP Photo/Matt Rourke)

This Saturday, Feb. 22, 2020 photo, shows part of the forested area and open space at Rancho San Rafael Regional Park just west of the campus of the University of Nevada, Reno. The park owned by Washoe County comprises the entire county's voting Precinct 7321 where only one person, a park employee lives. Unbeknownst to many, 108 of Washoe County's 555 precinct have no registered voters. (AP Photo/Scott Sonner)