- President Barack Obama departs for Denver, Colo., on Wednesday to participate in the first presidential debate of the season at the University of Denver.

- Vice President Joe Biden has no public meetings scheduled for Wednesday.

- First lady Michelle Obama is speaking at the University of Nevada, Reno, Wednesday morning.

- The Obama campaign is pressuring Mitt Romney to explain, in detail, his plan to improve the economy, something the Republican presidential candidate has been vague about on the campaign trail.

"He doesn’t have any specific plans to move us forward -- only tired repeats that will take us back. On job creation, deficit reduction and the middle class, Romney’s promises are nothing more than platitudes covering up a collection of contradictory positions," reads a memo being circulated by the Obama campaign, according to the Hill.