President Trump rallied support for Elon Musk’s car company, but there may not be enough conservatives willing to buy electric cars to make up for the Democrats who now shun Teslas.
Automakers looked forward to his return to the presidency only to find themselves struggling under the weight of his tariff threats.
The backlash against the electric vehicle company has intensified as the billionaire ally of President Trump exerts his power over the federal government.
The administration is setting the stage for Congress to repeal a longstanding waiver that allows California to set its own pollution standards. State officials say the effort is illegal.
Musk, uno de los principales asesores del presidente Trump, no ha esbozado un plan para revertir la caída de ventas de la empresa de automóviles eléctricos de la que es director ejecutivo.
Mr. Musk, one of President Trump’s main advisers, has not outlined a plan to reverse falling sales at the electric car company of which he is chief executive.
The state will no longer require some truckers to shift away from diesel semis but hopes that subsidies can keep dreams of pollution-free big rigs alive.
Legal experts said the president was testing the boundaries of executive power with aggressive orders designed to stop the country from transitioning to renewable energy.
Automakers and even some Republicans may fight to preserve funds, and environmental activists will likely sue, but some experts said that some changes may not survive legal challenges.
Rules for a $7,500 tax break for electric vehicle purchases and leases recently changed, but more far-reaching changes are expected when President-elect Donald J. Trump takes office.