Donald Trump’s efforts to help Tesla could end up hurting it. The U.S. president said Tuesday he will buy a Tesla as a show of support for CEO Elon Musk’s electric carmaker as it faces boycotts and even vandalism. But if Trump’s intention is to help reverse the frightening plunge in Tesla’s stock, he could have the opposite effect by turning off even more buyers. “Tesla is becoming a political symbol of Trump and DOGE, and that is a bad thing for the brand,” said Wedbush Securities financial analyst Dan Ives, referring to the advisory group in charge of cutting…