Looks like I'll just have to post excerpts from the article since you are so dense
Another partner, Jason Galanis, testified to Congress that he believed Archer and Biden were placed on the board to protect the company from Ukrainian investigations and prosecutions.
Pyatt's speech unexpectedly kicked Ukrainian prosecutors into a more aggressive effort to investigate Zlochevsky in fall 2015, an effort that came to an abrupt halt when Vice President Joe Biden
pressured Ukraine to fire the chief prosecutor, Viktor Shokin, by threatening to withhold $1 billion in U.S. loan guarantees. Archer told Congress last year that Burisma wanted Hunter Biden to get help from "D.C." to deal with the pressure from the Shokin probe.