Saul of Tarsus was out there rounding up Christians to be tried and killed. In our flesh and our natural mind we would pray that God would mete out his justice on Saul. However, what God did was to save Saul and transform him into Paul. That was far more glorious and impactful. In the same way we should be praying for others.
13 Then Ananias answered, Lord, I have heard by many of this man, how much evil he hath done to thy saints at Jerusalem: 14 And here he hath authority from the chief priests to bind all that call on thy name.
This doesn't mean we ignore the evil that a person has done. I think there are many things about Trump's sins that are open for the entire world to see. Maybe Jesus was very busy after having just been crowned and had missed this, then He could say "oh, my bad, thanks for that, how about instead you go over and preach to that nice old retired school teacher". The Lord does not rebuke Ananias for pointing this out. Instead He says:
15 But the Lord said unto him, Go thy way: for he is a chosen vessel unto me, to bear my name before the Gentiles, and kings, and the children of Israel: 16 For I will shew him how great things he must suffer for my name's sake.
Some jobs require a great deal of suffering and unless you first were the least of all saints and a very great sinner it would be hard for you to see why you need to go through all that. Perhaps the same can be said of Trump. My feeling is Jesus is Lord and He can use anyone He chooses. After all He paid the price.