Billionaire Elon Musk has hit back at Sen. Bernie Sanders' (I-VT) criticism of his wealth, sharing that his assets primarily comprise Tesla Inc. (NASDAQ:TSLA) and SpaceX shares.Check out the current price of TSLA here.Elon Musk Calls Bernie Sanders A ‘Taker'Musk took to the social media platform X on Tuesday, sharing that most of his assets are in the form of shares in his two major companies, which only increase in value based on "how much useful product those companies produce and service," he said.Musk a ...