 Derkach had met with Rudolph W. Giuliani in December 2019.Derkach's maneuver raised questions about foreign interference in the 2020 U.S. elections, and echoed Russian government's interference into the 2016 election.Biden's campaign and Poroshenko's political party European Solidarity described Derkach's act (which was publicized by the Russian state-controlled network RT) as a Russian attempt to harm Biden and disparage Ukraine.