Here is a poster from the election of 1848 depicting Whig candidate Zachary Taylor sitting on a pile of human skulls.
Is This the Nastiest Election Ever? - NYT [spoiler alert: no.]
From the article:
Jackson supporters charged that Old Hickory’s rival for the White House, the incumbent John Quincy Adams, was an actual pimp.
John Pimp-cy Adams definitely needs to be a thing, you guys.