In the district Wisconsin 2nd, what was the reason for change?
CREATE TABLE table_21167 (
    "District" text,
    "Vacator" text,
    "Reason for change" text,
    "Successor" text,
    "Date successor seated" text
)
SELECT "Reason for change" FROM table_21167 WHERE "District" = 'Wisconsin 2nd'
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: In the district Wisconsin 2nd, what was the reason for change? ### Input: CREATE TABLE table_21167 (
    "District" text,
    "Vacator" text,
    "Reason for change" text,
    "Successor" text,
    "Date successor seated" text
) ### Response: SELECT "Reason for change" FROM table_21167 WHERE "District" = 'Wisconsin 2nd'