CREATE TABLE table_34970 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB)

Which Result has a District of pennsylvania 13?
SELECT "Result" FROM table_34970 WHERE "District" = 'pennsylvania 13'
SELECT "Result" FROM "table_34970" WHERE "District" = 'pennsylvania 13'