One of the leading figures of the democratic party in the 1850s was

Martin Van Buren was one of the leading figures

Explanation:

In the 1850s the democatic party was run by president Andrew Jackson. Buren also ended up becoming the 8th president of america after Jackson.

accomplishment : zachary taylor’s was a national war hero in his battle in an mexican war

explanation:

he was known as a national war hero for his battles in the mexican war, taylor was elected as the 12th president of the united states in 1849. he led the nation during its debates on slavery and southern secession. after serving only 16 months in office, taylor died from cholera morbus on july 9,