Law enforcement authorities have prosecuted people that committed crimes. That is a fact.
After the due process that everyone gets in this country, for better or worse, and then some, they have been convicted. And that means, by most American standards, that they are guilty of having committed crimes. Those are facts.
Their motives in successfully prosecuting these criminals are unknowable. So, their motives are then a matter of belief or opinion.
But, again, they are guilty of crimes by the standard American measure. So, what difference does it make?
And, as a second matter, if there was pressure from Joe Biden or George Soros or whatever Democratic boogeyman you choose applied to the prosecutors that actually obtained the convictions, you'd think there would be some EVIDENCE of that. Just like there is EVIDENCE that Trump tried to get Sessions and Barr to prosecute his enemies, and they apparently declined to do so.