What would the proper way for Trump to execute a Biden investigation be? 
Surely even Democrats would agree he should be investigated? Did Trump just go about it in the wrong way?
LOL - sure lets investigate Biden
IF we do that will Trumptard stop whining when we investigate his plethora of crimes
As far as who should investigate. I think Trump should use the same amazing people that he hired to investigate Obama's birth certificate
Remember Trumptard did multiple interviews where he said they were finding amazing and unbelievable things and then he would soon reveal it all to us
Of course he never revealed anything and then eventually admitted it was all bullshit