The fight over data centers is suddenly at the epicenter of the midterm elections.One new ad in Texas begins with someone typing into a chatbot, “Why is my electric bill going up?” Another in Ohio blames one of the state’s Republican senators for a proliferation of data centers, calling them “a total scam.” And in top House battlegrounds in Michigan, Wisconsin, and Pennsylvania, the Democratic challengers are all running ads against the server warehouses powering the artificial intelligence boom.Data centers have become unlikely fault lines in the broader fight over an AI revolution that is remaking the global economy and…