What state had william bigler (d) as a successor)
CREATE TABLE table_26637 (
    "State (class)" text,
    "Vacator" text,
    "Reason for change" text,
    "Successor" text,
    "Date of successors formal installation" text
)
SELECT "State (class)" FROM table_26637 WHERE "Successor" = 'William Bigler (D)'
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: What state had william bigler (d) as a successor) ### Input: CREATE TABLE table_26637 (
    "State (class)" text,
    "Vacator" text,
    "Reason for change" text,
    "Successor" text,
    "Date of successors formal installation" text
) ### Response: SELECT "State (class)" FROM table_26637 WHERE "Successor" = 'William Bigler (D)'