[4] In the Ukrainian Parliament, he was a member of the faction of the Petro Poroshenko Bloc.

[6][7] On January 27, 2018, during the "joint meeting of the political council and the central control commission of the Socialist Party of Ukraine" Illia Kyva was expelled from the ranks of the Socialist Party of Ukraine and deprived of the status of the head of this political force.

[7] Kyva was nominated by the Socialist Party on November 3, 2018, for President of Ukraine in the 2019 election.

[8][7] According to a 2018 survey (of all Ukrainian politicians) by the "Committee of Voters of Ukraine" most of Kaplin's election promises cannot be fulfilled even theoretically.

[9] In the 2019 Ukrainian parliamentary election Kaplin lost reelection as an independent candidate in single-seat constituency 144 (Poltava Oblast).