Russia appeared to confirm on Feb. 13 the existence of a sweeping U.S.-Russia economic proposal known in Kyiv as the "Dmitriev package," days after President Volodymyr Zelensky first disclosed it publicly. The Ukrainian president said on Feb. 6 that intelligence had briefed him on what he described as a roughly $12 trillion framework for large-scale economic cooperation between Moscow and Washington."Intelligence showed me the so-called 'Dmitriev package' that he presented in the U.S. — it amounts to around $12 trillion," Zelensky told reporters in Kyiv.The reference is to Kirill Dmitriev, an envoy who heads Russia's sovereign wealth fund and has...