Chairman of the Verkhovna Rada Committee on veterans, combatants, participants in the anti-terrorist operation and people with disabilities (from the end of 2014).

Ihor Kolomoyskyi, one of the top Ukrainian businessmen and a co-owner of Privat Group, becomes Oleksandr’s business partner in the media holding.

Oleksandr Tretyakov becomes one of the closest confidants to the opposition leader Viktor Yushchenko, and for a long time he was in the inner circle of the future President and subsequently the Head of the State.

From September 2004 to the very day of inauguration in January 2005, Viktor Yushchenko and his family lived in Oleksandr Tretyakov’s house because of security concerns.

At the same time Victor Yushchenko dismissed the Prime Minister Yulia Tymoshenko and the entire government, as also the Secretary of the National Security and Defense Council Petro Poroshenko.

In December 2005 Tretyakov became an external Presidential Adviser, holding this position until October 2006 when he resigned due to disagreement with the personnel policies of the President.

In the 2014 parliamentary election Tretyakov was again re-elected after again winning single-member districts number 219 in Kyiv; this time as a Petro Poroshenko Bloc candidate.

[3] In the Verkhovna Rada of the 8th convocation he heads the Committee on veterans, combatants, participants in the anti-terrorist operation and people with disabilities.

In his first legislative initiatives, he raised issues of ensuring adequate social protection for participants in the power operation in Donbass, volunteers, members of volunteer formations, the provision of appropriate statuses for combatants, participants in the war, war invalids The Committee recommended the adoption of the Law on Amendments to the Law of Ukraine "On the Status of War Veterans, the Guarantees for their Social Protection," which defined the separate status of "The Affected Participant of the Dignity Revolution", and regulated the benefits and guarantees for their social protection.

This law was signed by the President of Ukraine on November 21 (посмотрите в тексте: 21 ноября какого года?

He supports the creation of the Ministry of Veterans Affairs in Ukraine similar to the existing departments in the US, Canada, Australia, Croatia and other countries: "We need to urgently develop an effective mechanism for the implementation of social protection in this area and create a government body that will be responsible for the effective implementation of state strategy for the social protection of veterans", Tretyakov said.

In 2017, the electronic declaration of Olexandr Tretyakov for 2015/2016, one of the first among the people's deputies was fully tested in the National Agency for the Prevention of Corruption.

In January 2018, the public network Opora included Alexander Tretyakov in the top three most effective Committee Heads of the Verkhovna Rada.

According to Tretyakov, Yushchenko's main mission in 2010 was to hold fair elections, but the democratic camp was supposed to be represented by a single high-rated candidate, and it was Yulia Tymoshenko at that period of time.