It will be the former first lady's first time hitting the trail for Harris.
Harris, the Democratic presidential nominee, is set to appear with Obama in Georgia on Oct. 24 and with Mrs. Obama in Michigan on Oct. 26, according to a Harris campaign senior official who spoke on condition of anonymity to discuss events before they are officially announced.
The official did not disclose the cities where Harris will join the Obamas.
The former president recently campaigned for Harris in Pittsburgh and has appearances scheduled Friday and Saturday in Arizona and Nevada, respectively, and next week in Wisconsin and Michigan.
Early voting opens statewide in Michigan on Oct. 26, and Harris and the former first lady will encourage supporters to cast their ballots as soon as possible, the official said.
In Georgia, where early voting opened this past Tuesday, more than 310,000 people voted on the first day, a record.
The Obamas endorsed Harris in July shortly after being part of the Democrat effort to push Joe Biden off the ticker in the wake of his disastrous debate performance in June.
