I haven’t read Lewandowski’s book, but Corey appears to be a very credible guy. I do know that Paul had experience in delegate handing and he was very effective at the critical time. They likely needed him in that position thru May- 2016.
Without insider political (R) experience and connections, it would be difficult to combat interior threats from the GOPe. Manafort delivered the votes when and where it was needed. He warded off dozens of republican back-stabbing whining weasels and jackals. And, I thank him for that, but don’t care to know the details of his plan.
I doubt Manafort, a multi-millionaire many times over, accepted the campaign job strictly for financial gain. So it’s not surprising that there was no severance package or benefits like Corey L. collected. In comparison to what we all know about the rest of the politicians, Paul is no more unsavory or savory then the rest of the crew. The enforcers just select persons for political destruction to demonize and prosecute.
I think there is truth to that.