[nicollo]

Beard actually turned on Roosevelt over the US entry to WWII.

Beard was an isolationist (from the Left) who thought that Roosevelt engineered Pearl Harbor. Beard saw the 1940 election as a repeat of 1916, when Wilson ran on an isolationist platform but did everything possible to get the US into the European war. FDR was right there.

[jamaksin]

Beard would have more likely used the expression "non-interventionalist in foreign affairs."