For Blumenthal's writing concerning Ukraine, Sławomir Sierakowski, the head of the Polish liberal, pro-European group Krytyka Polityczna, included Blumenthal in a "New York Times" opinion piece entitled "Putin’s Useful Idiots" in 2014. Sierakowski discussed Blumenthal's statement that the "openly pro-Nazi politics" of the Ukrainian political party Svoboda and its leader, Oleg Tyagnibok, "have not deterred Senator John McCain from addressing a Euromaidan rally" and did not "prevent Assistant Secretary of State Victoria Nuland from enjoying a friendly meeting with the Svoboda leader this February". He said that Blumenthal's statement "distorts how these things work. A whole range of Western political leaders traveled to Euromaidan, and virtually all of them were photographed with Mr. Tyagnibok". A 2018 article in the Ukrainian fact-checking organization StopFake described Blumenthal as a "pro-Russia American journalist" who "promotes Russian propaganda".