A scare for Taylor Swift as authorities arrest two men who they say were plotting an attack on the Vienna stadium where Taylor is set to perform…and the details are terrifying - with dangerous chemicals and an explosive device reportedly being found in the home of one of the suspects. And the day after Kamala Harris introduced her running mate, Minnesota Governor Tim Walz to the nation they are out on the campaign trail. Today they were in battleground states Michigan and Wisconsin. Donald Trump's running mate J.D. Vance is also there so brace yourself for “veep wars!”  Plus, with Simone Biles having wrapped up her run, there's a new Olympic superstar -track and field phenom Gabby Thomas. She just won gold in the 200 meter race, and as Allison Hall reports, she's got quite the resume off the track. And a bouncy house goes flying at a baseball game with children inside, killing a five-year-old. Now we're hearing the 911 call, as parents across the country worry if their kids are safe.