US President Donald Trump has again accused his Ukrainian counterpart Volodymyr Zelensky of not being "grateful" for getting billions of dollars from the United States under the previous Biden administration.

That surge reversed four years of poor performance for Tesla's shares as investors soured on the EV maker's weakening fundamentals and CEO Elon Musk's serial promises of fully self-driving cars and an inexpensive mass-market model that proved an ever-receding horizon.

The Commerce Department has changed its rules in a way that could open the door for Starlink, Elon Musk’s satellite internet service, to become part of a federal $42 billion grant program to bring high-speed service to rural and poor areas of the United States.

Elon Musk has pledged to keep Ukraine's access to his Starlink satellite network intact despite strong disagreements over Ukraine policy. Amid tensions, Musk emphasized Starlink's crucial role for Ukrainian forces and brushed off criticism from Polish and US officials regarding the support Ukraine receives from Starlink.

Elon Musk has claimed that if he turned off his Starlink satellite internet services, the “entire front line” in Ukraine would collapse.