CREATE TABLE table_37900 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" CLOB, "Result" CLOB)

What is the First elected of california 3?
SELECT "First elected" FROM table_37900 WHERE "District" = 'california 3'
SELECT "First elected" FROM "table_37900" WHERE "District" = 'california 3'