What is the latest year any of the incumbents were first elected? 
CREATE TABLE table_1342270_42 (first_elected INTEGER)
SELECT MAX(first_elected) FROM table_1342270_42
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1342270_42 (first_elected INTEGER) Question: What is the latest year any of the incumbents were first elected?  [/INST] SELECT MAX(first_elected) FROM table_1342270_42 </s>