voters in wisconsin after an eventful state of the union address. severe weather threat. thunderstorms, flash flooding, and possible tornadoes sweeping through the south. two children killed, six injured, when a bus crashes into the building. tonight, what happened to the driver. super bowl super security. an inside look at what it takes to protect one of the world s biggest events. and our new series you won t want to miss, living well. tonight, the author who says he has unlocked the secret to living a longer life. announcer: this is the cbs evening news with norah o donnell, reporting from the nation s capital. norah: good evening to our viewers in the west and thank you for joining us on this wednesday night. tonight, president biden is taking his message directly to voters, one day after delivering his state of the union address to a combative crowd of republican lawmakers. the president s trip to the battleground state of wisconsin is a kickoff of what s exp