CREATE TABLE table_37903 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" CLOB, "Result" CLOB)

What is the First elected that has a republican party and california 4?
SELECT "First elected" FROM table_37903 WHERE "Party" = 'republican' AND "District" = 'california 4'
SELECT "First elected" FROM "table_37903" WHERE "District" = 'california 4' AND "Party" = 'republican'