The former FAA head tussled with Musk and wanted to fine SpaceX for safety violations. He resigned after Trump won the election and hasn't been replaced.
Search efforts continue after an American Airlines plane from Wichita, with 64 people on board, collided with an Army helicopter near Washington, D.C., and crashed into the Potomac River.
It appears that the first major air disaster in the U.S. since 2009 has occurred while the Federal Aviation Administration does not have a permanent leader.
Elon Musk pressured the last FAA head Michael Whitaker to resign, publicly calling for his resignation, leading Whitaker to quit on the day of Trump's inauguration ...
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