After four years in office, Flores summoned a constitutional convention that wrote a new constitution, dubbed "the Charter of Slavery" by his opponents, and elected him to a new eight-year term of office.
Efter fire år ved magten indkaldte Flores et konstitutionelt konvent, som skrev en ny forfatning, kaldet "slaveribestemmelsen" af oppositionen, som gav ham yderligere otte år som præsident.