What year was Otto Passman (d) unopposed first elected?
CREATE TABLE table_1341690_18 (first_elected INTEGER, candidates VARCHAR)
SELECT MAX(first_elected) FROM table_1341690_18 WHERE candidates = "Otto Passman (D) Unopposed"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1341690_18 (first_elected INTEGER, candidates VARCHAR) Question: What year was Otto Passman (d) unopposed first elected? [/INST] SELECT MAX(first_elected) FROM table_1341690_18 WHERE candidates = "Otto Passman (D) Unopposed" </s>