Consider Theodore Roosevelt, who ascended to the office in 1901 after President William McKinley’s assassination. Roosevelt subscribed to what he called the stewardship theory of the presidency, which asserted that all executive actions were allowed unless expressly prohibited by law. This expansive view of presidential power, Roosevelt’s fondness for populist-style appeals to “the people,” and his “boundless energy and ambition” alarmed contemporary observers, including leaders of his own Republican Party. President McKinley’s powerful advisor, Mark Hanna, had warned against selecting
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