Tesla's fourth-quarter earnings and revenue fell short of analysts' estimates, sending shares down by 4% in extended trading on Wednesday. Automotive revenue sank 8%. The company attributed the decline in revenue to lower average selling prices for its Model 3, Y, S, and X vehicles. Tesla’s earnings report comes after a sharp rise in stock price linked to President Trump’s election. CEO Elon Musk was a major supporter of Trump’s campaign and now leads his government advisory board. Tesla's stock price surged after Trump's victory as investors anticipated Musk's influence would result in favorable policies and reduced oversight for his companies.