Who is the incumbent that has been in office since before 1996 and was again re-elected?
CREATE TABLE table_name_90 (
    incumbent VARCHAR,
    results VARCHAR,
    first_elected VARCHAR
)
SELECT incumbent FROM table_name_90 WHERE results = "re-elected" AND first_elected < 1996
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Who is the incumbent that has been in office since before 1996 and was again re-elected? ### Input: CREATE TABLE table_name_90 (
    incumbent VARCHAR,
    results VARCHAR,
    first_elected VARCHAR
) ### Response: SELECT incumbent FROM table_name_90 WHERE results = "re-elected" AND first_elected < 1996