This is the US Treasury Department ( https://home.treasury.gov/news/press-releases/sm1118) discussing the SOURCE, Andrii Derkach:
"the Department of the Treasury’s Office of Foreign Assets Control (OFAC) designated four Russia-linked individuals for attempting to influence the U.S. electoral process."
"Treasury designated Andrii Derkach (Derkach) pursuant to Executive Order (E.O.) 13848 for his efforts to influence the 2020 U.S. presidential election. Derkach, a Member of the Ukrainian Parliament, has been an active Russian agent for over a decade, maintaining close connections with the Russian Intelligence Services. Derkach has directly or indirectly engaged in, sponsored, concealed, or otherwise been complicit in foreign interference in an attempt to undermine the upcoming 2020 U.S. presidential election."
"Between May and July 2020, Derkach released edited audio tapes and other unsupported information with the intent to discredit U.S. officials, and he levied unsubstantiated allegations against U.S. and international political figures. Derkach almost certainly targeted the U.S. voting populace, prominent U.S. persons, and members of the U.S. government, based on his reliance on U.S. platforms, English-language documents and videos, and pro-Russian lobbyists in the United States used to propagate his claims."
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Here's his actual BACKGROUND:
"Derkach has past links to Russian intelligence. He attended the Dzerzhinsky Higher School of the KGB in Moscow. His father served as a KGB officer for decades before becoming head of independent Ukraine’s intelligence service in the late 1990s. His father was fired from that post amid a scandal over a Ukrainian journalist who was kidnapped and murdered