wall and see what sticks. It's not like the US or Biden were the only parties looking to get Shokin fired. There were plenty of other international calls for his firing. Plus his former deputy has confirmed that the investigation into the company was dormant when Shokin was fired.
Here is an article about the international support for Shokin's firing:
https://www.nytimes.com/2016/03/30/world/europe/political-stability-in-the-balance-as-ukraine-ousts-top-prosecutor.html
Here is an article about the deputy:
https://www.bloomberg.com/news/articles/2019-05-07/timeline-in-ukraine-probe-casts-doubt-on-giuliani-s-biden-claim