Compromise on Legislative Selection at the Constitutional Convention

At the Constitutional Convention of 1787, delegates debated various issues regarding the structure of government and representation. One contentious topic was the method of selecting members of the legislature. Some delegates supported direct election by the people, believing it would enhance democracy and accountability, while others argued for selection by state legislatures, fearing that direct elections could lead to instability and mob rule. What compromise did the delegates ultimately reach regarding the composition and election of Congress?