Final answer:
Horatio Seymour, former New York Governor, accepted the Democratic presidential nomination in 1868 after being convinced by friends, facing Ulysses S. Grant who emphasized peace in his campaign.
Step-by-step explanation:
The question pertains to Horatio Seymour, who was a former governor of New York and was nominated as the Democratic candidate for president in 1868. Friends convinced Seymour to accept the nomination, despite his initial reluctance. The Democratic campaign was marked by a challenge to Congressional Reconstruction, appealing to southern whites' fears of black rule. The opposing Republican campaign, backing Ulysses S. Grant, emphasized a plea for peace. Ultimately, Grant defeated Seymour in the presidential race.