Trump and Harris will face off next month. Here's what to know about the upcoming presidential debate

 Donald Trump and Kamala Harris are set to face off on the debate stage in a few weeks — a test for both candidates as Election Day looms.

The debate is scheduled for September 10 and will be hosted by ABC.

Now that the Democratic National Convention is over, Harris’ campaign has said the vice president is turning her focus to preparing for the event. Harris already held her first formal debate training session earlier this month at Howard University, the historically Black college in Washington, DC, she attended nearly four decades ago.

She’s working closely with Philippe Reines, a longtime aide to Hillary Clinton, who is reprising his role playing Trump at the request of the Harris campaign, several people familiar with the planning told CNN.

Trump, meanwhile, has revived the approach deployed ahead of his June debate with Biden, engaging in less formal policy sessions with close aides, advisers and allies in between campaign appearances and rounds of golf.

He also has enlisted one of the vice president’s ex-rivals to help with the preparations: Tulsi Gabbard, the former representative from Hawaii who ran for president as a Democrat in 2020 in a crowded field that also included Harris.