Short answers, pulled from the story.
The body that became El Salvador's Legislative Assembly was founded in 1824 as the Central American Congress. The 1886 constitution introduced the unicameral structure that defines the assembly today.
As of the 1st of May 2024, the Legislative Assembly has 60 seats. President Nayib Bukele proposed reducing the chamber from 84 to 60 seats on the 1st of June 2023, and the assembly passed the change on the 7th of June 2023.
Deputies are elected by direct popular vote using open-list proportional representation and serve three-year terms with eligibility for immediate re-election. Before 2024-64 of 84 seats came from 14 departmental constituencies and 20 from a single national constituency.
Candidates must be over 25 years old, Salvadoran citizens by birth born of at least one Salvadoran citizen parent, recognized as honest and educated, and must not have had their citizen rights canceled in the five years before the election, per Article 126 of the constitution.
Nuevas Ideas, the party associated with President Nayib Bukele, holds 54 of the 60 seats in the assembly following the 2024 election. ARENA and the National Coalition Party each hold 2 seats, with Vamos and the Christian Democratic Party holding 1 seat each.
The Legislative Assembly is unicameral, meaning it has a single chamber. El Salvador had a bicameral legislature under the constitutions of 1824 and 1880, but the 1886 constitution changed the structure to a single legislative body.