Summary: some Johnsons know how to wield power
Master of the Senate is the third volume of Robert Carol’s massive biography of Lyndon Johnson. Like the previous volumes, it is something of a history of his times as well as being a biography of Johnson.

So, Johnson is absent for large chunks of this biography as it introduces us to crusading economist Leland Olds, Hubert Humphrey, doyen of the progressive wing of the Democratic Party, Richard Russell, the leader of the Senate’s virulently racist Southern caucus, and, of course, Martin King.
Among other things this book is a study in power. It is fascinating to learn how Johnson transformed the hitherto irrelevant role of Senate majority leader into an office of incredible power.
There was little personally attractive about Lyndon Johnson. He was a bully, a serial adulterer, and a racist. But he understood power and he wanted to be president. So to obtain a viable presidential candidacy, Johnson destroyed Olds to keep his financial backers in the oil industry happy, and cosied up to Russell and his determined efforts to maintain state sanctioned terrorism against the black citizens of the United States across the South.
Caro observes in the course of this book, as he has in previous volumes, that Johnson’s life is composed of light and dark threads. However where Johnson’s instinct for compassion conflicted with his personal advancement, then his selfish interests won out.
But, in 1956 as he made his first attempt at the Democratic nomination, Johnson discovered that the support of corrupt oil interests and racist bigots was not enough. He needed support in the North as well. And Johnson revolted Liberal Democrats. So he had to do something to appeal to them. This led him to championing what became the 1957 Civil Rights Act, after first gutting it of all the substantive portions that Russell and his ghouls objected to. The negotiations and manoeuvring towards even this modest achievement provide a gripping climax to this volume, as compelling as anything in The West Wing or The Wire.
Caro argues that ultimately Johnson was by far the most important civil rights president since Lincoln. It is a remarkable aspect of his story how such an extraordinary narcissist was led towards this end from a beginning of overweening and selfish hunger for power.