Yes, and they should definitely install one of the president's best friends instead. Then we could truly have a fair and impartial investigation (aka one that clears the president within days if not hours).
Sadly, I could actually see Trump supporters agreeing with such a mockery of our justice system.
Mueller is as dirty as they come and on a witch hunt.
Even if that's true, who cares? If the president is innocent, he'll be cleared. You cannot, CANNOT, fabricate criminal charges against the President of the United States. It just ain't happening.
If you think it's a waste of money, oh well. A drop in the bucket compared to all the money wasted on other superfluous shit in both the public and private sector every single day.