Explains how interconnected race and gender ideologies underlie grievance politics on the Right and reveals how both are transforming American politics, policy, and law. In The Battle for White Male Supremacy, Mary McThomas sheds new light on the entwined racial and gender ideologies that have come to define large segments of the American Right and are roiling American law and politics. Individual chapters trace the development, ideas, and influence of several key groups: incels, alt-right vigilante groups, Christian nationalists, and men's rights groups at war with the judiciary. While these groups are often treated as discrete phenomena with distinct histories and ostensibly different goals, all share an interconnected belief system of victimhood and embattled white masculinity. By tracking these similarities, McThomas exposes how racial and gendered belief systems are connected both within and across groups. What is more, McThomas shows that these groups' beliefs and tactics have moved from the extremist fringes of society to the mainstream of American politics. They've gained broad traction in public opinion and political discourse, and they are transforming law and policy at both the state and federal levels.