Lazare's own politics are extremely pro-socialist, and in "The Frozen Republic" he lists problems with the Constitution and a few Constitutional crises and then uses them to justify a need for a socialist government.
Not only is the logic of his argument entirely faulty; in addition, he frequently takes time out from his main thesis to criticize and caricature various moderate or conservative historical figures (Jefferson, Reagan, Ford, Bork, Blackstone, Burke, etc.) for little reason, apparently, other than his own dislike.
Lazare's argument misunderstands the clearly-stated intent of the Constitution: "...to ensure the blessings of Liberty...," and to protect the people from being denied their unalienable rights (life, liberty, property) without due process of law.
Instead, he argues that the Constitution's only goal is to promote "democracy," and that as long as limits or checks are placed on elected officials, democracy is being restrained. The effect of placing UNLIMITED power in the hands of elected officials is not discussed, despite ample 20th century empirical evidence (Hitler, Mussolini...).
The argument is pure sophistry. The book is well-written as far as STYLE is concerned, but silly in most other ways.