Complex sentence: Representatives of rural counties also had disproportionate power in the state House of Representatives, and had failed to provide support for infrastructure and other improvements in urban centers such as Birmingham, having little sympathy for urban populations.
Split into simpler sentences: Representatives of rural counties also had disproportionate power in the state House of Representatives. They had failed to provide support for infrastructure and other improvements in urban centers such as Birmingham, and had little sympathy for urban populations.