user: Question: List all those first elected in the California 22 voting district.
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['California 2', 'Clair Engle', 'Democratic', '1943', 'Re-elected', 'Clair Engle (D) Unopposed']
SQL:

assistant: SELECT "First elected" FROM "Table" WHERE "District" = 'California 22';