USA supported and still supports pro-fascist movement in Ukraine. They started with their projects in early 1950s. They have used similar programs in the Baltics as well and nowadays the hammer and sickle is prohibited and SS-veterans are allowed to organize their parades.
Public support for the ideas of ultranationalism is very low in Ukraine (see the outcomes of 2014-2015 elections), as it is in the Baltic states. No evidence of any recent US support to any of such ultranationalist movements.