Good news and bad news regarding the Ukraine mess and Trump... Trump's "I AM DRAINING THE SWAMP!" tweet is more important than you might think. Joe Biden promised Ukraine a billion dollars if they fired the prosecutor investigating his son's company. This is a bold, straightforward assertion.  Biden is asserting that the prosecutor was not doing any investigating and was corrupt.  There is evidence corroborating that; Ambassador Geoffrey Pyatt criticized the office the year prior to Biden's forcing him out,  Without specific evidence that the prosecutor's office was indeed investigating Burisma, this video would be considered slander by the preponderance of the evidence, if not libelous.  I don't believe the prosecutor's sworn statement would be enough to swing a decision, since he has been painted as being corrupt. I'm fairly sure Trump wouldn't have released this video without that specific evidence.  I would guess the evidence would be documents from Shokin's office proving an investigation was in progress.  I'm also guessing the reason Trump hasn't been sued over the video by Biden means they already suspect he has such documentation.  (I could be wrong; such a lawsuit might still be in the planning stages.) The bad news is, while Trump probably has proof of the literal truth of his statement - that Biden had the prosecutor investigating his son's company fired - it doesn't mean he has proof that Biden knowingly had the prosecutor fired.  And in my opinion, if he had any such information - for instance, a recording of Hunter talking with his father about the investigation - he would not have released this video.  It would tend to tip his hand, and whatever campaign funds he's pulling in now based on it would be bupkus compared to the coup of catching Biden out with regards to the next election. Of course, I could be wrong... EDIT: Thank you @TSE for information on documents that tend to refute Biden's claim.  While this does not IMO constitute definitive proof that Shokin was investigating Burisma - the company's lawyers could in theory have been laying for whatever reason - it also IMO breaks the preponderance of evidence that could be used in a lawsuit against Trump. It does, however, raise some more interesting questions.  If the company's lawyers were not lying - and could introduce Ukrainian prosecutors to officials in the Obama administration, it points to a direct link between that administration and Burisma.