Washington, Nov. 20 -- Hours after hinting at a possible easing of tensions with Elon Musk, US President Donald Trump delivered a sharp six-word jab at the Tesla chief during his address at the US Saudi Investment Forum, revisiting their months-long friction.

Trump, speaking in his familiar off-the-cuff manner, repeatedly referenced the support he claimed to have given Musk during the billionaire's short period heading the Department of Government Efficiency. "Has he ever thanked me for that properly?" he asked the crowd, before returning moments later to remark, "You are so lucky I'm with you, Elon."

He went on to promote a tax credit tied to electric vehicle purchases, framing it as a boost for middle-income buyers. "Even people that ...