Tesla shares dropped nearly 5 in U.S. premarket trading on Friday, extending losses from earlier week. On Wednesday, the stock fell 8, marking its worst day since before the election. Tesla shares remain up about 65 since November 5th, driven by optimism around CEO Elon Musk’s ties to President-elect Donald Trump. Musk was a major Trump campaign donor appointed to co-lead the Department of Government Efficiency. Tesla’s Autopilot and Full Self-Driving systems remain semi-autonomous, requiring human supervision, as the company faces challenges in achieving full autonomy.