Only they sure did not act that way. Lets look at what took place.
- VP Biden did what the IMF, European leaders and more pressured Ukraine to get rid of a prosecutor which was seen as part of the corruption issue in Ukraine.
- Bidens son got a gig working a Ukraine gas company, making a nice bag of money.
So VP Biden helped make sure Ukraine was fighting corruption, while on the same time he is accused of somehow being corrupt putting his son in a lucrative position. I just can not see the ends meet here, not to mention that VP Biden did not make the IMF, European nations and others want the Ukraine prosecutor out. If the VP had been wanting to arrange something for his son it seems unlikely that would entail fighting corruption.
And lets not forget that really the focus should be on what Trump did, the Biden thing is really a distraction - it is Trump and the GOP not only trying to influence the next election but also them trying to make people ignore Trumps wrong doing. The focus should be on how the Trump and the GOP is blocking people from giving testimony and withholding documents, certainly I can not see any reason for them to do that except trying to hide the truth.