Complex sentence: To devote full-time to McKinley's presidential campaign, Hanna in 1895 turned over management of his companies to his brother Leonard, and rented a house in Thomasville, Georgia, expressing a dislike for Cleveland's winters.
Split into simpler sentences: To devote full-time to McKinley's presidential campaign, Hanna in 1895 turned over management of his companies to his brother Leonard. Mark Hanna rented a house in Thomasville, Georgia, expressing a dislike for Cleveland's winters.