The Constitutional Convention dealt with the slave population by developing the 3/5ths Compromise. The 3/5ths Compromise stated that for every 5 slaves, 3 of them will count towards a states population regarding representation in the House of Representatives and for taxation purposes. This allowed for slave states to have signficiant political power in the House but also results in the state government having to pay more direct taxes to the federal government.
A establishing new laws
he created economic reforms and also made more government funded jobs like Hoover dam and golden gate bridge
He disagreed that the church sell pardons for their sins hope this helps.