The Chew's Summer Picnic

David Muir, anchor of ABC's "World News Tonight with David Muir," joins Mario Batali in the kitchen, and the Radio City Rockettes ("New York Spectacular) bring their signature style and showmanship to kick off an unforgettable C&C Picnic Factory segment with Carla Hall and Clinton Kelly. Plus, "Chew" guest correspondent Aussie chef/author Dan Churchill travels to Branch, Louisiana, for an amazing crawfish boil at the source of deliciousness.