Henry Charles Carey’s insightful piece “Letters to the President on the Foreign and Domestic Policy of the Union” explores how the Union’s actions affect both the home and foreign fronts. Carey explores a variety of subjects, including US economic policy, tariffs, and currency issues. He illuminates the state and the people’s situation during this crucial time with perceptive analysis. Published in 1858, the book offers insightful historical background and is still important today to comprehend the intricacies of governance and how it affects society.