No. On the HBO TV show, Nucky adopts Margaret Schroeder's two children around the time that Margaret and Nucky marry. In researching The Boardwalk Empire true story, we discovered that the real Nucky Thompson (Nucky Johnson) never had any children. Yes.
The Supremcy Clause of the United States Constitution declares that the Constitution itself is the highest law of the land.
Basically, the Constitution is the highest law in the United States. All other laws come from the Constitution in some way. The Constitution also provides the framework for the government of the United States. It creates things like the Presidency, the Congress, and the Supreme Court.