Harold Holzer’s many books on Lincoln and the Civil War include The Lincoln-Douglas Debates: The First Complete, Unexpurgated Text.

For months, Newt Gingrich has floated the same challenge to President Obama that underdogs have hurled at their political rivals for more than a century: Let’s debate. And not just once or twice, but many times, with no moderators to intervene or inhibit us. Just two candidates, head to head — Lincoln-Douglas style.

As a Lincoln historian, I’ve studied the famous meetings between challenger Abraham Lincoln and incumbent Stephen A. Douglas that set the prairies on fire during the 1858 U.S. Senate race in Illinois. Gingrich has even called me to discuss them. As I’ve told Gingrich, the problem is that, as famous as the debates are, their reputation far outweighs their value. And they’re hardly an inspiring model for modern candidates seeking to showcase their oratorical skills. 

These lengthy rhetorical bouts tested the endurance of the audiences and the candidates. Rather than inspiring memorable words, they proved for the most part an embarrassment. The encounters were brutally sarcastic, featuring highly personal attacks rather than elevated discourse. And while they were the first major political forums transcribed by stenographers, the debates were not even accurately published. The texts we know today were massaged by partisan editors eager to make their candidate sound less garbled. Newspapers of the era were openly connected to major parties — imagine Fox or MSNBC editing debate tapes before broadcast.

Still, no friendly editing could disguise the debaters’ shortcomings, including their open prejudice...