Billionaire Ukrainian oligarch Ihor Kolomoisky returned to Ukraine on May 16 – his first time back in the country since June 2017, when he had to leave due to an unfolding conflict with then-President Petro Poroshenko over Privatbank (Gordonua.com, May 16). The businessman has well-known ties to Ukraine’s newly elected head of state, the former comic and actor Volodymyr Zelenskyy, and is strongly suspected of having supported or possibly even financed the latter’s presidential campaign (see Eurasia Daily Monitor, February 11, 13, April 23).