Flag grope at CPAC 2020 (Tasos Katopodis/Getty Images)

Once upon a time, in 1940, an organization called the America First Committee was founded in opposition to both broad and ambitious domestic policies designed to pull Americans out of the Great Depression and foreign policies to confront the threat of fascism in Europe and Asia.

Before the rise of the MAGA faithful, the Firsters built upon a long American tradition of White Anglo-Saxon Protestant nationalism. In the turbulent…