“Silent Coup” by G. Gordon Liddy is a good read on this.
“Silent Coup” was by Leon Coldny. But lots of interviews with Liddy. I think it was through that book that John Dean tried to sue Liddy. The case was dismissed. Dean never testified against Liddy to lay out his case.
Liddy said the break-in wasn’t political, but to get and remove materials linking Dean’s future wife to a call-girl ring.
I always liked listening to the G Man’s radio program.