CREATE TABLE "table1_1341690_5" (
  "district" text,
  "incumbent" text,
  "party" text,
  "first_elected" real,
  "result" text,
  "candidates" text
);

Question: Who was running for office in the California 10 district?
SQL: SELECT "candidates" FROM "table1_1341690_5" WHERE "district"='California 10';

Question: How many parties won the election in the California 23 district?
SQL: SELECT COUNT("party") FROM "table1_1341690_5" WHERE "district"='California 23';

Question: What republican candidate was first elected most recently?
SQL: SELECT MAX("first_elected") FROM "table1_1341690_5" WHERE "party"='Republican';