NASA’s (and Elon Musk’s) big day

NASA. Elon Musk. A rocket. What could go wrong? POLITICO’s Bryan Bender breaks down what’s at stake in today’s historic launch by NASA and SpaceX — the first astronaut takeoff from US soil in nearly a decade. Plus, Twitter clamps down on the president’s tweets. And North Carolina throws Trump’s Republican convention threat back at the GOP. Bryan Bender is a senior national correspondent for POLITICO. Jeremy Siegel is a host for POLITICO Dispatch. Irene Noguchi is the executive producer of POLITICO audio. Jenny Ament is the senior producer of POLITICO audio. Read more: Can NASA and Elon Musk lift off? Trump and Musk unite over Twitter, the moon and sticking it to the establishment