[9][10] Party leader Korolevska did become Minister of Social Policy of Ukraine in the second Azarov Government on 24 December 2012.

Onopenko became famous for leaving the office of Minister of Justice in protest to the events of 1995 connected with the burial of the Patriarch Volodymyr and became known as the Black Tuesday.

The Ukrainian Social Democratic Party (Ukrainian: Українська соціал-демократична партія, УСДП, romanized: Ukrayins’ka Sotsial-Demokratychna Partiya, USDP, Russian: Украинская социал-демократическая партия, УСДП) was founded in 1998[3] by former members of the Social Democratic Party of Ukraine (united).

[1] Party leader Korolevska was expelled from the “Bloc Yulia Tymoshenko-Batkivshchyna”-faction (formerly BYuT faction) in the Verkhovna Rada (Ukrainian parliament) on 14 March 2012.

[20] The same day the party stated on its official website "We are deeply shocked and outraged by the betrayal of the leadership of the faction "Bloc Yulia Tymoshenko-Batkivschyna".

[21][22] On 15 March 2012 the Ukrainian Social Democratic Party was expelled from the Yulia Tymoshenko Bloc for alleged "cooperation with the presidential administration and the ruling regime".

[28][29][30] Experts believed the party was gaining potential voters from former supporters of Sergiy Tigipko and his Strong Ukraine.

[34] An elaborate pre-election campaign for the 2012 Ukrainian parliamentary elections was carried out with massive use of television  , in particular promotional videos  , external media  , press  and even polls  .

party, according to experts' estimates as a result of monitoring outdoor and television advertising, cost 150-200 million US dollars.

In an interview conducted in Russian (the party’s primary language until 2014) with Kommersant’s Ukraine correspondent, Party leader Natalia Korolevska stated: Социологические войны ведутся перед каждыми выборами, но такого, как сейчас, еще никогда не было.

И поэтому мы, получив данные внутренних опросов, которые подтвердили наш результат в 7%, решили судиться.

Социология манипулирует мнением людей и является одним из элементов фальсификации выборов — людям заранее навязывают сфабрикованный результат.— Если выборы покажут, что ваш рейтинг гораздо ниже 7%, вы отзовете свой иск к КМИС и фонду "Демократические инициативы"?

That is why after having received the data of the internal opinion polls, which confirmed our 7% of the votes, we decided to take legal action.

- If the elections show that your rating is much lower than 7%, will you withdraw your lawsuit against KMIS and the Democratic Initiatives Fund?

[12][13][14] During the campaign for the 2012 Ukrainian parliamentary election the party promised to relieve small and medium business to the maximum possible extent, “an active part of a fair and efficient state”, “securing social justice and high social standards”, “more welfare” and counteraction against “societal rifts along cultural, linguistic, religious and national lines” and they committed to introduce “total citizen control on all government levels”.