Elon Musk sent an ultimatum to federal workers at the request of President Donald Trump: explain what they have achieved in the last week or be assumed to have resigned by Monday evening.The email requests employees send five bullet points justifying their work.

Trump, meanwhile, attacked Ukrainian President Volodymyr Zelenskyy while speaking at his Mar-a-Lago home as U.S. officials hold talks with Russia about ending the war in Ukraine that started when Russian President Vladimir Putin invaded its neighbor. Zelenskyy was not invited to the talks with Russia.

Elon Musk, the billionaire tech executive and President Trump’s cost-cutting czar, has alarmed workers across the federal government by ordering them to summarize their accomplishments for the week, warning that failure to do so would be taken as a resignation.