CREATE TABLE table_72413 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

What party did the incumbent from the Arkansas 5 district belong to?
SELECT "Party" FROM table_72413 WHERE "District" = 'Arkansas 5'
SELECT "Party" FROM "table_72413" WHERE "District" = 'Arkansas 5'