Who left a seat open for the district of connecticut at-large
CREATE TABLE table_25038 (
    "District" text,
    "Vacator" text,
    "Reason for change" text,
    "Successor" text,
    "Date successor seated" text
)
SELECT "Vacator" FROM table_25038 WHERE "District" = 'Connecticut At-large'
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 left a seat open for the district of connecticut at-large ### Input: CREATE TABLE table_25038 (
    "District" text,
    "Vacator" text,
    "Reason for change" text,
    "Successor" text,
    "Date successor seated" text
) ### Response: SELECT "Vacator" FROM table_25038 WHERE "District" = 'Connecticut At-large'