Tonight, “60 Minutes” has obtained a letter that indicates the government whistleblower who set off the impeachment inquiry of President Trump is under federal protection, because he or she fears for their safety. These rapidly developing events began Tuesday when Speaker of the House Nancy Pelosi ordered the investigation based on a phone call between Mr. Trump and the president of Ukraine. President Volodymyr Zelensky asked Mr. Trump for missiles, Mr. Trump asks Zelensky for “a favor” to investigate Mr. Trump’s Democratic rivals.
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