Tesla Inc Chief Executive Elon Musk got into a spat with Bernie Sanders after the US senator demanded the wealthy pay their "fair share" of taxes.
"We must demand that the extremely wealthy pay their fair share. Period," Sanders wrote on Twitter. Taking a jibe at the 80-year-old senator, Musk responded by saying "I keep forgetting that you're still alive."
The billionaire CEO who had already offloaded a combined $6.9 billion worth of shares in the electric car company as of November 12, further wrote, "Want me to sell more stock, Bernie? Just say the word."
Sanders' tweet comes amid the backdrop of Washington's efforts to hike taxes for the super-wealthy.
US Senate Democrats have unveiled a proposal to tax billionaires' stocks and other tradeable assets to help finance President Joe Biden's social spending agenda and close a loophole that has allowed them to defer capital gains taxes indefinitely.
A week ago, Musk tweeted that he would sell 10 per cent of his shares if users of the social media platform endorsed the move. About 57.9 per cent of people voted for the stock sale.
The US and Iran failed to reach an agreement to end their war despite marathon talks that concluded on Sunday in the Pakistani capital Islamabad, jeopardising a fragile ceasefire.
Russia and Ukraine accused each other on Sunday of breaching the 32-hour ceasefire in their four-year war, reporting more than a thousand drone and shelling attacks just hours after the truce began on Saturday to mark Orthodox Easter.
At least 30 people were killed on Saturday in a stampede at the Laferriere Citadel in the northern countryside of Haiti, authorities said, warning that the death toll could rise.
A cyclone battered New Zealand's North Island on Sunday, cutting power to thousands of residents and forcing hundreds to evacuate, as officials warned conditions would worsen through the day.
Negotiations between the United States and Iran appeared to have concluded for now, Iran's government has announced early on Sunday, after a series of talks in Pakistan to end the six-week war between Washington and Tehran.