<ul data-eligibleForWebStory="false">Tesla shares dropped by over 7% as U.S. President Trump criticized Elon Musk's plan for a new political party, sparking investor concerns.Investors fear potential risks to Tesla due to Musk's political distractions and potential cuts to EV incentives.A feud between Trump and Musk emerged over the Big Beautiful Bill Act, which eliminated tax breaks for EV purchases.The conflict could impact Tesla's autonomous vehicle initiatives, facing regulatory scrutiny amid probes by NHTSA.