Musk recently left Trump’s side after working for several months as the head of Trump’s so-called Department of Government Efficiency.
The bill would destroy millions of US jobs and give “handouts to industries of the past while severely damaging industries of the future”, Musk said.
The tech billionaire’s latest criticism of the package threatens to reawaken his public rift with Trump that began after the world’s richest man left his cost-cutting job in the administration.
The bill would bring a quicker end to a popular US$7,500 consumer tax credit for electric vehicles.
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While the earlier proposal would have ended the incentive at the end of this year for most EV sales, the new version terminates the credit after Sept 30. Tax credits for the purchase of used and commercial electric vehicles would end at the same time.
