I disagree. He's working to stop the nomination, this the statement. I appreciate that Dr. Paul has some standards that he applied even when it's a GOP nominee.
Too bad Trump's previous pick for AG wasn't defeated, we would have been spared the entire absurd Mueller investigation
Unless you still "Trust Sessions"..
More likely, Sen Paul is signalling that he wants some additional assurance from Barr about his views on RKBA and warrantless searches before voting to confirm him.
The White House will arrange for Barr to meet with Paul and give him those assurances, then Sen Paul will issue another statement saying he's going to vote to confirm.
That is how the DC two-step is performed.