Trump Impeachment: House To Vote On How Inquiry Should Proceed
The measure also sets out the rights Mr Trump’s lawyers would have.
This will be the first formal test of support for the inquiry in the Democratic-controlled House.
President Trump is accused of trying to pressure Ukraine into investigating unsubstantiated corruption claims against his political rival, Joe Biden, and his son who worked with Ukrainian gas company Burisma.
Mr Trump denies wrongdoing and calls the impeachment inquiry a “witch hunt”.
Republicans have criticised Democrats for the closed hearings up to this point, in which Republican lawmakers have also taken part. But Democrats insist they were needed to gather evidence ahead of the public stage of the inquiry, and deny allegations they have been secretive.
The debate is expected to start at 09:00 (13:00 GMT). Democrats, who have 234 of the 435 seats in the House, need a simple majority to approve the resolution.