David Pietrusza has produced a number of critically acclaimed works concerning 20th century American history, including a trilogy of works ("1920," "1960," and "1948") on presidential electoral history. He is also an expert on the 1920s and on the presidency of Calvin Coolidge and the career of Charles Evans Hughes.

Pietrusza has served as a regular panelist of FoxNews.com Live, appearing with such hosts as Kimberly Guilfoyle, Jonathan Hunt, Harris Faulkner, Julie Banderas, Jamie Colby, and Patti Ann Browne. He has been a frequent guest on C-SPAN and on ESPN documentary series such as SportsCentury, You Can't Blame, and Who's Number 1? and has been interviewed on NPR, MSNBC's "Morning Joe," SIRIUS-XM, The History Channel ("The Ultimate Guide to the Presidents"), the Voice of America, Bloomberg Radio, the Fox News Channel, GBTV, ESPN, the Fox Sports Channel, and the MLB Network. He has produced and written the PBS-affiliate documentary, "Local Heroes."

Pietrusza collaborated with baseball legend Ted Williams on an autobiography called Ted Williams: My Life in Pictures. This book contained pictures of Williams throughout his life (many from his personal collection) and commentary on what each one depicted. Williams died shortly after the book was published.

From 1993 to 1997, Pietrusza served as president of the Society for American Baseball Research (SABR), and was later the editor-in-chief of the short-lived publishing company Total Sports.

Pietrusza holds both bachelor's and master's degrees in history from the University at Albany. He has served on the City Council in Amsterdam, New York and as Public Information Officer for the New York State Governor's Office of Regulatory Reform and the New York State Office of the Medicaid Inspector General.