Florida Governor Ron DeSantis is set to announce his bid for the Republican nomination live on Twitter with CEO Elon Musk. Relations between Washington and Beijing have been tense lately, but China's new ambassador to the U.S. says he wants to get the two sides back on track. And, the United States is at risk of downgrading its AAA credit rating as debt ceiling negotiations drag on.Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)