 Live from NPR News in Washington, I'm Dave Mattingly. President Biden and former President Donald Trump will be facing off tonight in Atlanta in their first debate of the 2024 campaign for the White House. The U.S. economy, border security, immigration, and abortion rights are expected to be among the issues. As NPR's Rachel Triesman reports, the 90-minute debate, hosted by CNN, will be the first between Biden and Trump in four years.