Michael Phelps, Ryan Lochte, Missy Franklin vie in Olympic trials

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With Rio just over a month away, the U.S. Olympic swim trials kicked off in Omaha Sunday night. It features some of the sport’s biggest names, including Michael Phelps, Ryan Lochte and Missy Franklin, all vying for spots on Team USA. NBC’s Miguel Almaguer reports for TODAY. (Run time: 3:01)