I have always assumed the investigation into the oranges [sic] of the Russia Investigation was like your boss's pet project you really do not want to do: you tell her you are working at it, provide updates, and hope she will eventually forget she asked you to do it.
In his hearing Barr said that the Trump Campaign was spied on. He is fully on board with the tin-foil hat conspiracy theories, and seems to think the inquiry into those theories are worthy of the time and personal attention of the Attorney General of the United States.
All to cast doubt on the legitimacy of an inquiry into Russia's attack on our democracy, why? What could the outcome of that be, other than helping to clear the decks for another one in 2020?
Seems to me if Barr has a problem with the way Mueller conducted his inquiry he is fully in right to look into how Mueller acquired and presented his evidence of Trump's obstruction of justice and collusion with Russia. I don't know why Barr would need Australia, Italy, the UK and Ukraine to do that.