Biden administration officials are working against the clock doling out billions in grants and taking other steps to try to preserve at least some of the outgoing president's legacy before President-elect Donald Trump takes office in January.

Elon Musk, the wealthiest man in the world, has been a full-time presence at Trump’s Mar-a-Lago transition headquarters. According to media reports, he is advising the president-elect on cabinet nominees and even joined a conversation between Trump and Ukrainian President Volodymyr Zelensky last week.