Evidence shows that within 30 days of June 7, 2024, Trump publicly softened his anti‑EV stance and expressed support for electric vehicles:

• At a rally captured in a June 7, 2024 clip, Trump said he was "a big fan of electric cars" and of Elon Musk, while still emphasizing that people should also have the option of gas cars.(zerohedge.com)
• On June 20, 2024, coverage of an Arizona rally quoted Trump again saying he was "a big fan of electric cars" and praising Tesla and Musk, explicitly framing this as a shift in his position on EVs and sustainability.(electrifynews.com)
• Subsequent reporting in July 2024 by Reuters and others described these June remarks as Trump saying he was "a big fan of electric cars" and a fan of Elon, treating them as a notable change from his prior anti‑EV rhetoric.(reuters.com)
• By contrast, earlier coverage of his 2024 campaign repeatedly stressed that he had "made no secret his disdain for electric vehicles" and was vowing to end what he called an EV "mandate," underscoring that the June comments were a softening rather than a continuation of his prior line.(business-standard.com)

Because these supportive/softened statements about EVs occurred in mid‑June 2024—well within 30 days of June 7, 2024—the prediction that Trump would "come out magically in support of EVs" in that timeframe is best scored as right.