Factbox: Two Republicans, over two dozen Democrats vie for U.S. presidential nomination

FILE PHOTO: U.S. President Donald Trump waves to the press as he returns to the White House, in Washington, DC, U.S., June 23, 2019, after a day at the presidential retreat Camp David, Maryland, and afternoon at his Trump National club in Sterling, Virginia. REUTERS/Mike Theiler

(Reuters) - The largest Democratic field in the modern U.S. political era is competing for the party's 2020 presidential nomination.

The diverse group of more than 20 vying to challenge President Donald Trump, the likely Republican nominee, includes seven U.S. senators. A record six women are running, as well as black, Hispanic and openly gay candidates who would make history if one of them becomes the party's nominee.