Tesla shares dropped 5% Monday, following President Donald Trump's announcement of new import tariffs from Canada, Mexico, and China. The stock also faced pressure from falling registrations in key European markets. Trump's 10% tariff on Chinese imports impacted Tesla, which produces about half its vehicles in China. CFO Vaab-hav Ton-age-ah warned last week that tariffs could hurt Tesla’s profitability, despite efforts to localize supply chains. Over the weekend, Tesla cut lease prices on the Model 3 and Cybertruck.