CREATE TABLE table_2668367_21 (party VARCHAR, incumbent VARCHAR)

Name the party for john randolph redistricted from the 15th district
SELECT party FROM table_2668367_21 WHERE incumbent = "John Randolph Redistricted from the 15th district"
SELECT "party" FROM "table_2668367_21" WHERE "John Randolph Redistricted from the 15th district" = "incumbent"