Twenty Democrats have qualified for the first of six televised debates scheduled on June 26 and 27 in Miami, Fla. Three candidates did not meet qualifications established by the Democratic National Committee in May to participate.

Given the historically large candidate field, the debates will be spread over two nights involving 10 candidates each. To qualify, a candidate must have registered 1% or more in at least three qualifying polls between January 1 and two weeks before the scheduled debate, which was June 12 for the first debate.

The other way to qualify was for a campaign to show it had received 65,000 unique donations, and at least 200 donations in 20 states.

Candidates qualifying for the first debate and the night of their appearance, in alphabetical order, are below:

Colorado Sen. Michael Bennett (June 27)

Former Vice President Joe Biden (June 27) *

New Jersey Sen. Cory Booker (June 26) *

South Bed, Ind. Mayor Pete Buttigieg (June 27) * 

Former HUD Secretary Julian Castro (June 26) *

New York City May Bill de Blasio (June 26)

Former Maryland Rep. John Delaney (June 26)

Hawaii Rep. Tulsi Gabbard  (June 26) * 

New York Sen. Girsten Gillibrand (June 27) *

California Sen. Kamala Harris (June 27) *

Former Colorado  Gov. John Hickenlooper (June 27)

Washington State Gov. Jay Inslee (June 26) *

Minnesota Sen. Amy Klobuchar (June 26) *

Former Texas Rep. Beto O’Rouke (June 26) *

Ohio Rep. Tim Ryan (June 26)

Vermont Sen. Bernie Sanders (June 27) *

California Rep. Eric Swalwell (June 27)

Massachusetts Sen. Elizabeth Warren (June 26) *

Writer and speaker Marianne Williamson (June 27) *

Entrepreneur Andrew Yang (June 27) *

Those candidates who met both criteria have an asterisk after their name and the debate session in which they will participate. The same criteria will apply for the next debate scheduled in late July.

The three candidates who did not qualify are: Montana Gov. Steve Bullock; Miramar, Fla., Mayor Wayne Messam; and Massachusetts Rep. Seth Moulton. 

Dates: Wednesday, June 26th; Thursday, June 27th

Time: 9 p.m. to 11 p.m. ET

Where: The Adrienne Arsht Center for the Performing Arts in Miami

TV: NBC News, MSNBC, Telemundo

Watch Online: NBCNews.com, MSNBC.com