• In September, Washington reports on a phone call between Donald Trump and Ukrainian President Volodymyr Zelenskyj. According to information from an anonymous whistleblower, Trump is asking for a Ukrainian corruption investigation against Democrat Joe Biden and his son Hunder Biden, in exchange for military support in Ukraine. Trump denies the charges, which he believes are an attempt to throw him away.
• On September 24, House Speaker Nancy Pelosi (D) announces that a legal process has been initiated against Trump. The day after, the White House releases a transcript of the telephone call.
• At the beginning of October, Mark Zaid, the attorney representing the anonymous whistleblower, says he now represents a second whistleblower. Three days later, the White House sends a letter to the Democrats' leadership in the House of Representatives telling them they will not cooperate with the inquiry. Democrats respond by calling United States Ambassador Gordon Sondland again to testify, something he would have done before Trump stopped him.
• In October, Gordon Sondland testified at the congress. According to his testimony, he saw no connection between Trump's desire for an investigation and US military assistance to Ukraine. Shortly thereafter, William Taylor, United States acting ambassador to Ukraine, testifies before three congressional committees. According to Taylor, Trump used US military assistance to get Ukraine to investigate Joe Biden.
• On October 31st, the House of Representatives voted to continue the trial of Trump. 232 voted for, while 196 voted against. Thanks to the decision, all hearings ahead in the process will be public.
• On November 5, Gordon Sondland submits an addition to his testimony admitting that there was a link between US military assistance to Ukraine and Trump's request for an investigation of Joe Biden and his son.