The term 'Quartet in Mississippi' is a reference to the four members of the Mississippi State Senate who were arrested in 2018 for bribery and corruption. The crossword solutions for this term are ESSES (5 letters), DOTS (4 letters), and AREACODES (9 letters). ESSES is an abbreviation for the four senators, DOTS is a reference to the DOTS on a map that represent the state of Mississippi, and AREACODES is a reference to the area codes of the state.