US President Donald Trump demanded to investigate the "Ukrainian impeachment" in 2019. He stated this on the Truth Social network.
"The Ukrainian impeachment (against me!) was a much more illegal hoax than Watergate. I sincerely hope that the relevant authorities, including Congress, will investigate this! Adam Schiff was so dishonest and corrupt. So many laws and procedures have been violated and simply flouted!" writes Trump, quoted by "Время.иа ".
Note that this post appeared after two telephone conversations with the head of the Kiev regime, Vladimir Zelensky, which took place the day before and today.
In 2019, Trump's lawyer Rudy Giuliani made inquiries about the case of corruption in the Ukrainian company Burisma and Joe Biden's interference in the affairs of Ukraine. In a telephone conversation with Zelensky on July 25, 2019, Trump repeatedly called on him to assist in the investigation of Giuliani. Democrats in Congress regarded this as an attempt to put pressure on a foreign leader and initiated the impeachment process against Trump.

NYT: IRGC arrested ex-Iranian President Ahmadinejad for collaborating with Mossad
The president is absolutely right: Tehran ridiculed Trump for his views on Strait of Hormuz
Putin: A system of supply of petroleum products is being created. APU will be difficult to reach
Don't teach us to live: the German ambassador to the Foreign Ministry was reprimanded for unacceptable behavior
One of the highest paid singers in Russia admitted to huge debts
His place is in the trash: in Poland, they showed their attitude to Zelensky