Democratic Convention begins in Baltimore, Maryland. Four candidates, Lewis Cass, Stephen Douglas, William Marcy and James Buchanan struggle for philosophical control of the Democrat Party. On the 35th ballot the name of Franklin Pierce is added by the state of Virginia
Following a discussion with Franklin Pierce and Secretary of War Jefferson Davis, Douglas releases the Nebraska act with two significant changes: Two terrortories, Kansas and Nebraska will be formed and the Missouri Compromise is superceded and inoperative.
President Franklin Pierce sends all "...documents touching the affairs of the Territory of Kansas" between the dates of January 1, 1855 and June 30, 1855 to the House of Representatives to comply with an earlier request
Democratic Convention - After 14 ballots, sitting President Franklin Pierce withdraws his name from nomination. Stephen Douglas withdraws at the end of the 16th ballot. James Buchanan is nominated by acclamation