The latest remarks from U.S. President Donald Trump and Tesla (TSLA.US) founder Elon Musk were filled with tension. Musk bluntly stated on Thursday that Trump would lose the presidential election without his support, even calling Trump ungrateful. Trump had earlier expressed disappointment with Musk's opposition to his tax policy bill.Related NewsFactory Orders MoM for Apr in United States is -3.7%, lower than the previous value of 3.4%. The forecast was -3%.The relationship between the two allies showed signs of alienation, leading to a nearly 9% or US$28 slump in Tesla's stock price to US$303 Friday.(Real-time Streaming US Stocks Quote; Except All OTC quotes are at least 15 minutes delayed.)