Multiple sources tell CNN that Vice President Kamala Harris has focused in on Pennsylvania Governor Josh Shapiro and Minnesota Governor Tim Walz as potential running mates. She is expected to announce her decision Tuesday afternoon. Plus, the National Hurricane Center is warning of "potentially historic rainfall" and "catastrophic flooding" for parts of Georgia and the Carolinas over the next few days due to Tropical Storm Debby. Isabel Rosales is live from Savannah, Georgia.

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