What district first elected a Democratic incumbent in 1998?
CREATE TABLE table_1805191_50 (district VARCHAR, party VARCHAR, first_elected VARCHAR)
SELECT district FROM table_1805191_50 WHERE party = "Democratic" AND first_elected = 1998
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1805191_50 (district VARCHAR, party VARCHAR, first_elected VARCHAR) Question: What district first elected a Democratic incumbent in 1998? [/INST] SELECT district FROM table_1805191_50 WHERE party = "Democratic" AND first_elected = 1998 </s>