In 1852, the Democratic party of the US was split into hostile factions, none of which could muster sufficient strength to secure the presidential nomination. The charming and unobjectionable Pierce was nominated as a compromise candidate. He unexpectedly trounced his opposition in the general election despite being largely unknown beforehand. However, Pierce proved unable to mediate slavery-related political troubles. As a testament to his unpopularity, he was the first US president to do what? Discuss
Source: The Free Dictionary