CREATE TABLE table_203_95 (id DECIMAL, "year" TEXT, "democratic\ party" DECIMAL, "republican\ party" DECIMAL, "independent\ / other" TEXT, "majority" DECIMAL)

the 1865 majority is how much greater than in 1966 ?
SELECT (SELECT "majority" FROM table_203_95 WHERE "year" = 1865) - (SELECT "majority" FROM table_203_95 WHERE "year" = 1966)
SELECT (SELECT "majority" FROM "table_203_95" WHERE "year" = 1865) - (SELECT "majority" FROM "table_203_95" WHERE "year" = 1966)