Complex sentence: He was elected to the Kentucky State Senate in 1792, and was later elected the 2nd Lieutenant Governor of Kentucky, elected in 1804, and died while presiding over the State Senate in his first year as Lieutenant Governor from "inflammation of the brain".
Split into simpler sentences: He was elected to the Kentucky State Senate in 1792, and was later elected the 2nd Lieutenant Governor of Kentucky in 1804. Caldwell died while presiding over the State Senate in his first year as Lieutenant Governor from "inflammation of the brain".