Should Barr be investigated for his actions as AG? ?

Yes. And behind bars.

Barr has not acted as Trumps personal attorney, that is a talking point only.

May just as well start investigations on everyone in the government. Democrats arent doing anything but sending nonsensical bill's to the Senate and then try to blame Republicans for not voting on them, so maybe if everyone is being investigated they'll decide to do the jobs they were elected to do. 

He should be investigated but he is the attorney general, so he would have to investigate himself, I think. He is supposed to be above reproach, but he is Trump's attorney. 

Yes.

.......................

And imprisoning Americans for two years on charges of possession of WMDs without enough evidence to go to trial.  Oh wait, that was Holder.  

Enjoy your delusions while you can.

Yes the AG's job is not to be the white houses attack dog. Janet Reno made Bill testify under oath for the Paula Jones lawsuit, that's how independent she was.