Months of community opposition and a rejected rezoning request have cast doubt on the future of a proposed peaker plant in the state’s second-largest county.By Anika Jane BeamerFAIRFAX, Iowa—Nearly 50 people gathered at the American Legion Post on a July evening to learn about a proposed natural gas plant less than three miles from town. Seated in folding chairs, they pulled out their phones and typed responses to a simple question: How are you feeling?