Final answer:
General Zachary Taylor was affectionately known as 'Old Rough and Ready' for his amusing attitude and choice of clothing.
Step-by-step explanation:
General Zachary Taylor was affectionately known as "Old Rough and Ready" for his amusing attitude and choice of clothing. He often appeared in a simple uniform and a straw hat when in battle, which hardly looked presidential but had great appeal to the average voter. Additionally, Taylor owned plantations in Louisiana and Mississippi, which ensured that southern Whigs would not abandon the party after their northern brethren supported the Wilmot Proviso.