He [Louis Brandais] did believe in the states famously as laboratories of democracy, to use that resonant phrase that Tea Party and conservative libertarians have embraced today because he loves state experimentation.

I came to believe that actually [Louis] Brandeis tended to uphold laws that he liked and strike down those that he didn't, generally strike down centralizing federal agencies in the New Deal, and uphold state economic experimentation.

I think the answer has to do with the fact that [Louis D.] Brandeis was a consistent critic of bigness in business and in government.

William Howard Taft, who he embarrassed in these congressional hearings, attacks him as an emotionalist and a socialist and a cosmopolitan in terms that kind of have an anti-Semitic overtone. And even the pro-Brandeis press supported him in terms that really seem creepy today. There's this piece from Life magazine. It says, "Mr. Brandeis is a Jew. And until now there's never been a Jew on the Supreme Court. Perhaps it's time we have one."

Basically [Louise] Brandeis was a Jeffersonian. And you say the timing is great, and it is in a lot of senses, except not for [Tomas] Jefferson, because this is a Hamiltonian moment, and he's the rock star of the minute with a great musical.

Louis Brandeis beloved uncle, Lewis Dembitz, was an ardent abolitionist. His mother was an abolitionist in Kentucky at a time when Brandeis remembered hearing the shot from the confederate soldiers after the second battle of Bull Run. Amazing to think that he heard that and I studied with one of his last law clerks in college. And that encapsulates almost all of American history.

Louis Brandeis really inspired me to write this book [Louis D. Brandeis: American Prophet]. It was a crazy deadline. The editor said I'd miss the hundredth anniversary unless I pumped the thing out in six months, because I'd been delaying and dilly dallying for so long. So he both inspired me to get up early and write.