30 Jul. 2019
Detroit, UNITED STATES
Leading Democratic White House contenders Joe Biden and Elizabeth Warren will share the stage for the first time on Thursday when the top 10 candidates for the party's presidential nomination meet in a debate in Houston.
Twenty Democrats continue to vie for their party's nomination to challenge Republican President Donald Trump in November 2020, but party rules about polling and fundraising resulted in only half of them qualifying for the debate in Houston.
All of the top 10 Democrats will debate on one night, allowing voters to take stock of the leaders side-by-side.
Here are some key moments to watch for during the debate. REUTERS/Lucas Jackson