The eye-opening story of how a conservative think tank of political philosophers dedicated to the founding principles of the United States became the base of operations for Trump's agenda of destroying civil rights and undoing American democracy. From the Heritage Foundation’s Project 2025 and the Federalist Society’s decades-long campaign to shape the judiciary, private think tanks have long been the shadowy intellectual engine driving conservative politics. But the Claremont Institute remains the most consequential organization in shaping the MAGA agenda. Founded in southern California in 1979, Claremont’s original mission was “to restore the principles of the American Founding to its rightful, preeminent authority” in American society. Now, historian Darrell Munsell uncovers how the Claremont Institute went from being a home for erudite political philosophers to serving as the base camp for the January 6 insurrection, Project 2025, and President Trump’s authoritarian agenda. The institute’s political activism began with its endorsement of Donald Trump for president in 2016, followed quickly by its entry into the cultural battles against Black Lives Matter, multiculturalism, critical race theory, and the use of diversity, equity, and inclusion programs in public universities, government agencies, and commercial enterprises. By the end of Trump’s first term, Claremont believed that “wokeism” was an existential threat to the Founders’ Constitution and was fighting to win the culture war at any cost—including attempting to reverse the results of the 2020 election. In the wake of Trump’s 2020 defeat, Claremont lurched further rightward toward populism, Christian nationalism, and illiberalism. Led by John Eastman, Charles Kesler, Thomas D. Klingenstein, and a new generation of young, conservative activists—some from the furthest fringes of the far-right—the Claremont Institute is shaping the movement of National Conservatism with its devotion to replacing constitutional democracy with an authoritarian system of government. Claremont joined forces with the Heritage Foundation and other groups to draft Project 2025, the now-infamous blueprint for the second Trump administration. Munsell’s revelatory history of the Claremont Institute pulls back the curtain on one of the most influential organizations in American politics and a driving force of the MAGA ascendency. A must read for anyone seeking to understand the hidden forces behind Trump’s agenda.