The advance of Igor Kolomoisky and his allies into government present Zelenskiy with “his first crisis since taking office in May,” Leonid Bershidsky writes for Bloomberg in an Opinion titled: “Ukraine’s Zelenskiy Can’t Afford to Fail His First Oligarch Test.” “Zelenskiy appears to be hoping his early successes and his young administration’s good intentions will overshadow the Kolomoisky issue for most voters, even if he makes a deal with the oligarch,” he writes. “Zelenskiy needs to prove that he’s not going to use his power to help old friends and partners. Cutting off Kolomoisky’s access, and publicly supporting a speedy investigation into [Valeria] Gontareva’s troubles, would be a start.”