The growing controversy stems from a whistleblower complaint that at least partially dealt with a phone call Trump made with Ukrainian President Volodymyr Zelensky on July 25. A copy of the conversation published by the White House showed that Trump had repeatedly urged Zelensky to investigate former vice president Joe Biden and his son Hunter.
There is no evidence of misconduct by Joe or Hunter Biden.
Even before the complaint against the whistleblower was made available to lawmakers, House spokeswoman Nancy Pelosi said Tuesday Trump had betrayed his oath of office and announced that he would initiate a formal impeachment investigation against the president.
Trump had previously criticized the call for "Ukrainian witch-hunt" while Biden accused the president of abusing his power to "pollute" him. On Sunday, the president said he hoped the officials would publish details of the call, but slapped the whistleblower responsible for filing a complaint.
Below is a timeline of the recent key events and stories surrounding Trump, Ukraine and the Whistleblower.
- May : Rudy Giuliani flirting with Ukraine ̵
- 10th-11th July: Oleksandr Danylyuk, secretary of The National Security and Defense Council of Ukraine visits the White House, the Pentagon and the Ministry of Foreign Affairs.
- 24th July : Special Representative Robert Mueller says before the congress.
- 25th July: Trump and the Ukrainian President Volodymyr Zelensky speak by phone. In September Trump Zelensky is said to have urged to identify the son of Democratic presidential candidate Joe Biden. Later, Trump admitted that he was talking about Joe Biden. "We had a great conversation." The conversation I conducted was mostly congratulatory, mostly corruption – all the corruption that took place was largely due to the fact that we do not want our people to be like Vice President Biden and his son Corruption ), "Trump told reporters on Sunday. In a reading of the call, the Ukrainian government referred to the discussion on corruption investigations, but nothing was mentioned in the White House version – only that Trump congratulated Zelensky on his recent election .
- 28. July : Trump announces that Director of National Intelligence Dan Coats is retiring.
- August : Giuliani said he had spoken by phone and in person with a representative of Zelensky.
- . 8 August : Trump announces Deputy Director Sue Gordon will leave the administration.
- 12th August : A whistleblower submits a complaint to the Inspector General.
- 15th August : Gordon and Coats Leave the Office of the Director of National Intelligence.
- 26th August : The Intelligence IG forwards the complaint to the incumbent DNI.
- 28th August : The then national security adviser John Bolton meets with Zelensky in Kiev.
- 30th August: Trump is considering blocking $ 250 million in military aid to Ukraine and halting the disbursement of funds during a formal review process.
- . 1 September : Vice President Mike Pence meets with Zelensky in Warsaw.
- . 2 September : Deadline for the submission of the whistleblower complaint by the DNI to the Congress – this is not transmitted.
- . 9 September : Intel IG notifies intelligence chief Adam Schiff of an "urgent concern" overriding DNI.  September 9 : Three House committees are investigating Trump's, Giuliani's and others' efforts to pressure the Ukrainian government to support the president's re-election efforts. The committees request information about Trump's July telephone conversation with Zelensky.
- 10th September : Ship demands that DNI forward the complaint.
- 12th September : The cessation of administration for the Ukrainian help is lifted.  September 13 : Ship confirms the incumbent DNI.
- 17th September : The incumbent DNI refuses to testify.
- 17th September : Foreign Minister Mike Pompeo speaks with the Ukrainian Foreign Minister  September 18 : It is reported that the complaint is a Trump message with a foreign leader and a "promise" is the House Intelligence Committee.
- 18th September : Pence speaks by phone with Ukrainian President Zelensky.
- 19th September : The Inspector General gives a secret briefing to the House Intelligence Committee.  September 19 : The Washington Post and The New York Times announced that the whistleblower's concern was partly with the Ukraine.
- 20th September According to reports, Trump urged Zelensky to investigate Biden's son during a phone call on July 25
- 22. September: Trump admits he has discussed Joe Biden in a July call with Zelensky.
- 22nd September: Speaker of the House Nancy Pelosi writes to the incumbent DNI stating that if the government's refusals persist, this would constitute a "serious potential violation of Trump's constitutional duties and turn Congress into a totalitarian one
- 23 September: Trump informs reporters in the United Nations that his talks with the leaders of Ukraine have been flawless and he wanted the world to see what he says
- September 23: The Washington Post reports that Trump has asked his incumbent Chief of Staff Mick Mulvaney to plant a Ho About a week before a call to Zelensky, millions of military aid were provided to Ukraine.
- September 24: Trump Tweets The White House will publish a transcript of its call to Zelensky. [1965September24: Speaker of the House Nancy Pelosi announces a formal impeachment investigation against Trump.
- 24. September: Ship Tweets The whistleblower is interested in a statement and could do so before the end of the week.
- 25th September: The White House publishes her transcript of Trump's appeal to Zelensky.
- 25th September: Trump meets with Ukrainian President Zelensky at the United Nations General Assembly.
- 25th September: Whistleblower complaint is delivered to Capitol Hill.
- 25th September: Whistleblower provisionally agrees to meet with Congressional legislators.
- 25th September: House democrats' list in support of opening an impeachment investigation exceeds 200.
- 26. September : The acting DNI to inform the House Intelligence Committee.
This timetable will be updated with further developments.