10 MAJOR ACCOMPLISHMENTS OF HIM
#1 HE DIRECTED THE PHILADELPHIA CONVENTION TOWARDS FORMING A NEW CONSTITUTION
#2 MADISON DRAFTED THE INFLUENTIAL VIRGINIA PLAN
#3 HE WAS ONE OF THE THREE CONTRIBUTORS TO THE FAMOUS FEDERALIST PAPERS
#4 JAMES MADISON IS CONSIDERED THE FATHER OF THE CONSTITUTION
#5 HE DRAFTED THE UNITED STATES BILL OF RIGHTS
#6 HE CO-FOUNDED THE DEMOCRATIC-REPUBLICAN PARTY
#7 HE SERVED AS U.S. SECRETARY OF STATE UNDER PRESIDENT THOMAS JEFFERSON
#8 JAMES MADISON SERVED AS THE FOURTH PRESIDENT OF THE UNITED STATES
#9 HE LED THE NATION DURING THE DIFFICULT WAR OF 1812
#10 THE FINAL YEARS OF HIS PRESIDENCY SAW UNPRECEDENTED PROSPERITY IN AMERICA
That's all I hoped i helped you!!
They helped to end slavery
Answer: See below
Explanation: People thought that a younger energy was a fresh start for leadership and his catholic background had drawn in many catholic voters that generally sided with the Republican party.