 It's Morning Edition from NPR News. I'm Michelle Martin. And I'm Layla Fault. And good morning. When President Biden and former President Donald Trump take the stage tonight, it will mark the first time a sitting president and a former president have ever debated. CNN is hosting the first presidential debate of this election season at its Atlanta studios. The candidates are expected to discuss a range of issues that have already surfaced on the campaign trail, including inflation, unemployment,