Dubinsky was initially a member of President Volodymyr Zelenskyy's Servant of the People party, and was elected Deputy Chair of the Committee on Finance, Tax and Customs Policy.

A separate investigation was opened in August 2023, with him being accused of travelling to Spain for a holiday under false pretences amidst the war in his country.

[12] According to Media Detector, when Oleksandr Dubinsky started working as the head of the Journalistic Investigations department in 2010, he became a clear and consistent advocate of 1+1 channel's owner Ihor Kolomoisky.

[citation needed] During the 2019 presidential election, Dubinsky released a lot of critical materials about Poroshenko and only one about Yulia Tymoshenko.

[14] At the end of 2019, Dubinsky, who is considered to lead "Kolomoyskyi's influence group in the Ukrainian parliament" and who, on assignment of the oligarch, "joined the public campaign ... aimed at shifting responsibility for interfering in the 2016 US elections from Russia to Ukraine" met with Rudy Giuliani, who was looking for compromising material on Joe Biden.

[15] In the October 2020 Ukrainian local elections Dubinsky headed the Servant of the People electoral list for deputies of the Kyiv Oblast Council.

[24] On November 14, 2023 Dubinsky was arrested and detained in a Ukrainian jail prior to trial for treason, "accused of operating at the behest of Russian intelligence when they aligned with efforts by Rudolph W. Giuliani to tie the Biden family to corruption in Ukraine".

On 1 February, during the live broadcast of the talk show People Are Against It on ZIK TV channel, five guests left Oleksandr Dubinsky's studio over his post.

[26] On 2-3 May 2019, Dubinsky's dubinsky.pro website posted information on the introduction of a fee for placing electronic records on the Health Ministry's website[clarification needed] about passing medical examinations, as well as budgetary funds for the training of health care workers, which were allegedly directed for a project implemented by the NGO "Patriot Protection".

[28] In June 2019, Dubinsky, as an announcer on 1+1, shot a controversial video after Kolomoyskyi's attempted takeover of the Ukrainian low-cost airline carrier SkyUp with the help of the Baryshivskyi District Court of Kyiv Oblast.

[31][32] In August 2019, shortly after being elected, Dubinsky defended Israeli Prime Minister Benjamin Netanyahu's wife Sara after she threw bread on the floor at Boryspil airport, saying in the past five years the former authorities had glorified Nazi collaborators.

In his Telegram, Dubinsky often refers to unknown sources when making statements and sharing information in what is seen as an effort to avoid responsibility.

a "stray animal" for photographing a meeting between Prime Minister Oleksiy Honcharuk and the head of President's Office Andriy Yermak in a restaurant in Kyiv.

He expressed indignation at the work of the journalist in his post on his Facebook page where he called Radio Svoboda odious, empty and idle.

[39][40] On 7 April 2020, Dubinsky shared a screenshot (supposedly fake) on his Facebook page in which, on behalf of Dnipro mayor Borys Filatov, it was promised to shoot pets that residents walk in parks during quarantine during the COVID-19 pandemic.

Moreover, Filatov published a post calling (likely) Dubinsky a "Bearded Nana's (a local nickname for Kolomoyskyi) sidekick".

Investigators believe that Dubinsky refused to show his fortune immediately after his election, because of the large number of cars and real estate he owned with his mother and wife.

[45] Dubinsky explained that 7 cars, including Mercedes and Maserati, are registered in the name of his mother by saying "Mum likes the speed".