A presidential rematch looks more certain than ever after a big Super Tuesday for Donald Trump and Joe Biden. Why a prominent California Democratic Senate candidate spent millions of dollars to boost a Republican opponent. And how a cyberattack on an obscure but critical U.S. health care company has disrupted our entire system.Want more comprehensive analysis of the most important news of the day, plus a little fun? Subscribe to the Up First newsletter.Up First was edited Dana Farrington, Kevin Drew, Andrew Sussman and Ben Adler. It was produced by Julie Depenbrock, Ben Abrams and Kaity Kline. We get engineering support from Josephine Nyounai. And our technical director is Zac Coleman.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy