In our last column, we discussed Supreme Court Justice Clarence Thomas, an enigma. This week, we take a look at a book published in late 2019 about Brett M. Kavanaugh.Republicans and the court takeoverRuth Marcus, in her excellent book, “Supreme Ambition: Brett Kavanaugh and the Conservative Takeover,” provides details and matters not previously revealed. As the title suggests and the jacket blurb makes clear, the supreme ambition is twofold:“The Republicans began plotting their takeover of the Supreme …