Doris Kerns Goodwin served under LBJ.
As Dr. Doris Kerns, who became an associate professor of history of Harvard, she did have sex with that ballot-box stuffer and major benefactor of Brown & Root, Lyndon Baines Johnson.
The Texas Connection, Craig I. Zirbel, Warner, 1991, page 90, from It Didn't Start With Watergate, Victor Lasky, Dial, 1977, page 203.
I confirmed this by e-mail last year with Lasky's agent, the much-maligned confidant of Linda Tripp.
LBJ was doing America, and Doris was doing LBJ. Political bedfellows betraying everything but ambition.