hoping to win over the hawkeye state's crucial early voting block. kristin fisher joins us from des moines live tonight. >> climate change is one of the key issues among democratic voters in this state, all of the 2020 contenders talk about a but many of the farmers in this state and there are a lot of them in this cattle barn at the iowa state fair are worried some of the proposals to combat climate change could hurt their livelihood. so i asked mayor pete buttigieg right after he stepped off the soapbox today what he thought, what his pitch was to these iowa voters who are worried that this could hurt their livelihood. >> there is a way to make sure this is a win for rural america. it is why -- there are a lot of things we can do where we have a huge part of the solution. >> he ruled out his solution