Sen. Mark Kelly of Arizona said he could no longer stand the association with Elon Musk.

Arizona Senator Mark Kelly, a former Space Shuttle commander who used to work with Elon Musk’s SpaceX, has ditched his black Tesla Model S after publicly feuding with the world’s richest person in recent weeks.

Kimbal Musk, the brother of Tesla CEO Elon Musk, has been offloading shares of Tesla in recent months just as the stock has made a massive retreat from all-time highs. The electric vehicle maker, however briefly, had been among the select group of trillion-dollar companies following the stock’s post-U.S. presidential election surge.

After a slight rebound earlier this week, Tesla's TSLA stock is back to falling, keeping with its recent performance. Even U.S. President Donald Trump's purchase of one hasn’t done much to spark real momentum for the electric vehicle (EV) leader.

Tesla stock closed down 3% at $240.68, while the S&P 500 and Dow Jones Industrial Average lost 1.4% and 1.3%, respectively. Tesla stock rose 7.6% on Wednesday after gaining 3.8% o