Musk, in his first direct attack on Trump amid a days-long rant against Trump’s signature policy bill, reposted a 2013 tweet from Trump that said he was in disbelief and

Tesla shares have taken a hit in recent days as the world's richest man and U.S. President continue to exchange jabs over the spending bill.

Tesla shares dropped by nearly 5 percent in premarket trading following the president’s rant and fell further once the market opened. As of 10 a.m. ET Tesla shares had fallen below $300 to sit at $294.72. It is the latest setback for the troubled auto manufacturer which has seen its stock value crater in value following Musk’s foray into politics.