It's a politics-filled Saturday as Republicans hold a presidential candidate forum and the Democrats have their Jefferson-Jackson Dinner in Des Moines, Iowa. This year's dinner features Chicago Mayor Rahm Emanuel as the keynote speaker; four years ago the dinner launched then-Sen. Barack Obama's presidential candidacy into high gear. Guest host Linda Wertheimer talks with NPR's Don Gonyea about the events.
Faced with rules that prevent its drivers from hanging out on airport property waiting for rides, Uber is tweaking its system for ride-hailing pick-ups at Reagan National and Dulles International airports.
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