What We're Following This Morning

Republican debate: Donald Trump’s rivals came out swinging at the billionaire at last night’s GOP presidential debate. But it’s unclear whether their attacks dented the Republican front-runner. What is clear, as my colleagues point out, is that Carly Fiorina was the winner.

Interest rates: We’ll know this afternoon whether the Federal Reserve raises them. Many economists expect the Fed to wait until next month to raise rates in the face of concerns about China’s economy and other signs of weakness.

Chile quake: A magnitude 8.3 quake off the coast of Chile last night prompted tsunami warnings across the Pacific. Five Eight people were killed and more than 1 million people were evacuated from their homes. As my colleague Marina noted, the quake hit west of the city of Illapel, about 170 miles north of Santiago, the capital.

Bergdahl in court: Sargeant Bowe Bergdahl, who was held captive by the Taliban for five years, is in court today for a preliminary hearing into whether he deserted his post in Afghanistan. He was freed by the group last year in exchange for five high-ranking Taliban prisoners in U.S. custody. Update: More here.

Constitution Day: In honor of Constitution Day, here’s a link to the document.