You're reading: Bloomberg: Trump whistle-blower goes where Mueller never could

Revelations about Donald Trump’s interactions with Ukraine’s president are shaping up to be the most serious threat to his presidency so far, surpassing even the special counsel investigation into Russian election interference that dogged the first two years of his administration.

A whistle-blower complaint released Sept. 26 alleging that Trump abused his power when he asked Ukraine’s Volodymyr Zelensky to investigate Joe Biden in a July 25 call compounded the damage from a rough transcript of the conversation the White House released a day earlier.

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