Casting for trout in the Tarryall River, at Broadmoor Fishing Camp, in Colorado, with a little help from an expert.JEFFERSON, Colorado – “If you don’t get a bite,” said Scott Tarrant, wading out into the Tarryall River, “remember the old timers’ advice. Foam is home. Follow the bubbles.”“Sounds like a beer drinker’s election slogan to me,” said Josh, my neighbor …