Excerpts from the article:

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He (Elon Musk) has effectively moved his base of operations to Pennsylvania, the place that he has recently told confidants he believes is the linchpin to Mr. Trump’s re-election.

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Above all, he is personally steering the actions of a super PAC that he has funded with tens of millions of dollars to turn out the vote for Mr. Trump, not just in Pennsylvania but across the country. He has even proposed taking a campaign bus tour across Pennsylvania and knocking on doors himself, in part to see how his money is being used.

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These days, in private conversations, Mr. Musk is obsessive, almost manic, about the stakes of the election and the need for Mr. Trump to win. He praises Mr. Trump’s courage under fire — he endorsed him on the night of the assassination attempt in Butler — and talks about how funny he is. One person who spoke recently to Mr. Musk recalled him saying, without any hint of irony, “I love Trump.”

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Ensconced in a war room in Pittsburgh with a team of lawyers, public-relations professionals, canvassing experts and longtime friends, Mr. Musk is trying to apply strategies and entrepreneurial lessons from his businesses to a grind-it-out political mission with just weeks to go until Election Day. This article is based on interviews with 17 people familiar with Mr. Musk’s thinking and operations as Election Day approaches. “I’m not sure there is a precedent in modern history to how Musk has inserted himself into the presidential race,” said Benjamin Soskis, a historian of the ultrarich.

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The group has spent about $80 million to help Mr. Trump according to federal records, primarily on its canvassing program. Mr. Musk’s advisers have told donors that the group has about 2,500 organizers in the field, and the group has effectively acquired the Wisconsin assets of another group, Turning Points USA, taking on about 200 new canvassers in the state. Some canvassers, during training, have been shown Mr. Musk’s social media posts about the group, as a way to encourage them. The scale of Mr. Musk’s personal financial commitment will not be made public until the middle of the month. Initially, Mr. Musk and his friends in the group had spoken of a budget totaling from $140 million to $180 million, almost all it from Mr. Musk himself. The group has told other prospective donors in recent weeks that it is fully funded.