Former Denver Mayor Wellington Webb talks about his work on a national committee trying to unite the Democratic party and avoid the mistakes of the 2016 election. Then, bands can face up to a five-year wait to book a concert at Red Rocks. We asked listeners about the best performances they’ve heard at the mountain amphitheater. Plus, Coloradan Hal Walter coaches his son, a middle-school runner, who has autism. Writing about the experience, Walter says his son has taught him a new definition of winning. Also, a hip-hop gardener celebrates Juneteenth with vegetables.