“The calls were leaked by Ukrainian MP Andrii Derkach, who says the recordings of “voices similar to Poroshenko and Biden” were given to him by investigative journalists who claim Poroshenko made them.”
Too clean on Biden’s end on AF2-— imho, for them to have come from a Ukrainian in Poroshenko’s gang. Not too fine a point— that leaker is a target for the Zolochevsky KGB pres/owner of Burisma (former). He is in Moscow,and Poroshenko said to still be on the run since his lost election. How it is in Ukraine that still has the russian spetznaz and in country there is still pro russian ukrainian militia (contained to some extent, with our current help under Trump).