CREATE TABLE table_3625 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" CLOB, "Result" CLOB, "Candidates" CLOB)

What party represents the district with john g. jackson?
SELECT "Party" FROM table_3625 WHERE "Incumbent" = 'John G. Jackson'
SELECT "Party" FROM "table_3625" WHERE "Incumbent" = 'John G. Jackson'