Alan Dershowitz's book, "War on Woke," argues that a new form of McCarthyism is emerging from the left. Dershowitz contends that this new McCarthyism, fueled by the belief in "woke" ideologies, threatens traditional liberal values such as free speech, due process, and equal application of the law. He criticizes those who embrace a fixed notion of "truth" and demonstrate intolerance towards dissenting viewpoints. He uses examples such as the selective prosecution of Donald Trump and the suppression of conservative voices in academia to illustrate his argument, ultimately calling for action against this growing threat to American liberties.