sessions with sam and sort of laying out everything. i took the incident of the bungled break-in and cover-up and put it in the context where it could be understood. and he came to realize that i would be his most important witness. so he worked quietly with me to get enough evidence to immunize me. >> as it became evidence through the senate watergate investigation, dean's role was bigger and bigger and bigger in this. and that he was obviously part of a conspiracy. at that point, john dean was getting ready to testify. i called his lawyer, and he said, yes, he is going to imp case president of the united states. dean was going to have explosive testimony. t-mobile covers more highway miles with 5g than verizon.