CREATE TABLE table_37902 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" TEXT, "Result" TEXT)

Which First elected has a Incumbent of none (new seat)?
SELECT "First elected" FROM table_37902 WHERE "Incumbent" = 'none (new seat)'
SELECT "First elected" FROM "table_37902" WHERE "Incumbent" = 'none (new seat)'