In 2023, OpenAI CEO Sam Altman visited Washington multiple times, largely to soothe worries that AI would wreak havoc on the world. | Jason Redmond/AFP via Getty Images OpenAI, the fast-growing maker of ChatGPT, is tripling the size of its D.C. policy team and trying to promote a sweeping new plan to deliver cheaper energy to data centers. Though its 12-person Washington policy staff is still small compared to tech giants like Amazon and Meta — which have more people employed as registered lobby...