“That’s blasphemy for a scientist or physician.”Tipirneni is one of several candidates with a scientific background running for federal office this fall. Both races are incredibly close, with recent polls showing Tipirneni and Bollier either ahead or behind their opponents by only a few percentage points. “Arizona should be leading the charge on a renewable energy economy,” Tipirneni says, adding that those energy sources are key to reducing the impacts of climate change. Marshall regularly plays up his medical credentials: he has given himself the nickname “Doc,” and his Twitter username is @RogerMarshallMD. She is a Democrat and says the pandemic has made her pay greater attention to candidates’ adherence to scientific guidelines.