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Politics & Power Quote by Abraham Lincoln

"Allow the president to invade a neighboring nation, whenever he shall deem it necessary to repel an invasion, and you allow him to do so whenever he may choose to say he deems it necessary for such a purpose - and you allow him to make war at pleasure"

About this Quote

Lincoln is doing something more bracing than warning about foreign entanglements: he is dissecting a rhetorical loophole that turns a republic into a one-man war machine. The line hinges on a lawyerly, almost trap-setting rhythm - "allow... whenever... whenever..". - that mimics how emergency language metastasizes. What begins as a seemingly modest concession ("repel an invasion") quietly becomes an elastic permission slip, because the trigger is not an objective fact but the president's own claim that he "deems it necessary". Lincoln is spotlighting the real danger: not invasion, but the definition of invasion.

The subtext is a suspicion of executive self-justification. Once the standard is internal to the executive branch, oversight collapses into theater. "Deems" is the tell; it relocates war-making from constitutional process to presidential mood, then wraps that mood in the respectable costume of national defense. Lincoln is also implicitly challenging the emotional blackmail that comes with security arguments: if you question the war, you are cast as indifferent to safety. He refuses the frame.

Context matters. Lincoln wrote this as a young congressman during the Mexican-American War, criticizing President Polk's claims about Mexican aggression. It's easy to forget that Lincoln-the-wartime-president first emerged as Lincoln-the-anti-pretext skeptic. He understood how leaders launder ambition through fear, and how citizens can be coaxed into surrendering the most consequential power a democracy has: the choice to fight.

The sentence lands because it treats language as policy. Control the justification, and you control the war.

Quote Details

TopicWar
Source
Verified source: Collected Works of Abraham Lincoln, Volume 1 (1824–1848) (Abraham Lincoln, 1953)
Text match: 98.79%   Provider: Cross-Reference
Evidence:
Allow the President to invade a neighboring nation, whenever he shall deem it necessary to repel an invasion, and you allow him to do so, whenever he may choose to say he deems it necessary for such purpose---and you allow him to make war at pleasure. (Letter dated Feb. 15, 1848 (Herndon letter); page listed in the online edition as p. 452). PRIMARY SOURCE (author’s own words): This line comes from Abraham Lincoln’s letter to William H. Herndon dated February 15, 1848, written during Lincoln’s single term in the U.S. House (Mexican-American War context). The link provided is a scan/transcription from the University of Michigan’s digital edition of Roy P. Basler (ed.), The Collected Works of Abraham Lincoln (1953). This edition is an authoritative publication of Lincoln’s writings, but it is not the first publication event in 1848; it is a modern scholarly compilation reproducing the original letter text.
Other candidates (1)
The Life of Abraham Lincoln (Ward Hill Lamon, 1872) compilation92.3%
... Allow the President to invade a neighboring nation whenever he shall deem it necessary to repel an invasion , and...
Cite

Citation Formats

APA Style (7th ed.)
Lincoln, Abraham. (2026, March 4). Allow the president to invade a neighboring nation, whenever he shall deem it necessary to repel an invasion, and you allow him to do so whenever he may choose to say he deems it necessary for such a purpose - and you allow him to make war at pleasure. FixQuotes. https://fixquotes.com/quotes/allow-the-president-to-invade-a-neighboring-24755/

Chicago Style
Lincoln, Abraham. "Allow the president to invade a neighboring nation, whenever he shall deem it necessary to repel an invasion, and you allow him to do so whenever he may choose to say he deems it necessary for such a purpose - and you allow him to make war at pleasure." FixQuotes. March 4, 2026. https://fixquotes.com/quotes/allow-the-president-to-invade-a-neighboring-24755/.

MLA Style (9th ed.)
"Allow the president to invade a neighboring nation, whenever he shall deem it necessary to repel an invasion, and you allow him to do so whenever he may choose to say he deems it necessary for such a purpose - and you allow him to make war at pleasure." FixQuotes, 4 Mar. 2026, https://fixquotes.com/quotes/allow-the-president-to-invade-a-neighboring-24755/. Accessed 29 Mar. 2026.

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About the Author

Abraham Lincoln

Abraham Lincoln (February 12, 1809 - April 15, 1865) was a President from USA.

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