The Campaign Post was a political newspaper supporting General George B. McClellan, the Democ­ratic presidential nominee of 1864. Published weekly in Boston by The Boston Post, it ran for at least 12 issues, eight of which are available in the Lincoln and the Civil War collection.  The journal reported the Democratic National Convention in Chicago and published McClellan's official letter of acceptance.  A lengthy letter from a Union soldier endorsed the Democratic nominee and criticized President Abraham Lincoln's administration of the war.  The newspaper printed speeches by Governor Horatio Seymour of New York and other leading Democrats, including Reverdy Johnson's condemnation of "Lincoln's Crimes and Failures" in the October 28 issue. 

The Campaign Post considered the twin evils of Republican rule to be the consolidation of power by the federal government, particularly in the executive branch, and abolitionism (as manifested through Lincoln's Emancipation Proclamation of 1863).  By contrast, McClellan was believed to be an effective military commander who would respect the rights of states and individuals.  Against the presumably revolutionary policies of the Lincoln administration, the journal asked:  "What prospect of peace is there on the Abolitionist idea of wiping out eleven States, and reconstructing their social systems?"

The Campaign Post reported Democratic state conventions and meetings from across the country, paying particular attention to New England and New York.  The journal covered campaign news from around the state of Massachusetts, delivered results from states holding elections before the November presidential vote, and charged that Republicans had committed election fraud in Indiana.  It published campaign songs and poems, as well as jokes and advertisements.  Although the paper concentrated on political news and commentary related to the upcoming elections, it also carried war updates, foreign views of the war, a front-page story on the petroleum industry, and an occasional financial and busi­ness column.