What party does William J. Jefferson?
CREATE TABLE table_1341453_20 (party VARCHAR, incumbent VARCHAR)
SELECT party FROM table_1341453_20 WHERE incumbent = "William J. Jefferson"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1341453_20 (party VARCHAR, incumbent VARCHAR) Question: What party does William J. Jefferson? [/INST] SELECT party FROM table_1341453_20 WHERE incumbent = "William J. Jefferson" </s>