Despite his obvious admiration for LBJ, Caro does not hide the man's faults. He chronicles Johnson's shiftlessness after high school, his physical cowardice, his vulgar table manners, practicing law without a license (or even a college degree), making his subordinates carry on discussions while he was on the toilet moving his bowels, telling them that it was their job to "kiss my ass and tell me how sweet it is," his extramarital affairs, and all of it. He even stole a few elections, beginning in college.
I have not been inclined to read any of the biographies on Barack Obama, and I don't know if there have been any published on Joe Biden. Don't know if I'll ever read them. But I seriously doubt any biography written on either of them will ever be as honest about their faults as Caro's on LBJ.
LBJ stole an election (Box 13) and later got the the White House via another stolen election (1960) and a political assassination.
The first 2 are not in dispute and the 3rd happened under questionable circumstances.
And yet people still LIKE LBJ. All of their agner at him over escalating Vietnam disapated over time and they do not GAF about his stolen elections or cronyism.