The House of Representatives impeachment inquiry into United States President Donald Trump was launched by Democratic House Speaker Nancy Pelosi on September 24 and marked a departure from her previous stance of resisting calls by the so-called “left wing” of the party to begin the impeachment process.
The exposure, by an anonymous “whistleblower”, of Trump’s attempt to force Ukrainian President Volodymyr Zelensky to investigate Democratic presidential candidate Joe Biden and his son Hunter for alleged corruption, caused Pelosi to make this step.