Complex sentence: He returned in August to conduct meetings with his advisers to formulate a solid campaign strategy; two days later, his campaign manager, Gaylord Parkinson, left that position to care for his ailing wife.
Split into simpler sentences: He returned in August to conduct meetings with his advisers to formulate a solid campaign strategy. Two days later, his campaign manager, Gaylord Parkinson, left his position to care for his ailing wife.