Congressional Briefings
- NHC Congressional Briefing on the History of Political Partisanship: January 29, 2016
- NHC Congressional Briefing on History of Incarceration in the United States: October 9, 2015
- NHC Congressional Briefing on the Federal Role in Race and Reconstruction: March 13, 2006
Washington History Seminars
- Beyond Freedom’s Reach: A Kidnapping in the Twilight of Slavery: September 28, 2015
- To Make Men Free: A History of the Republican Party: March 2, 2015
- The Men Who Lost America: British Leadership, the Revolutionary World, and the Fate of Empire: November 17, 2014
- The Secret Ballot in the United States: April 7, 2014
- Myth of Race: December 9, 2013
- Malaria, Yellow Fever, and Independence: October 7, 2013
- Lincoln and Emancipation: International Reactions: May 13, 2013
- Abraham Lincoln and the Irish: January 23, 2012