CREATE TABLE table_72390 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

How many parties were for candidates newt gingrich (r) 59.1% dock h. davis (d) 40.9%?
SELECT COUNT("Party") FROM table_72390 WHERE "Candidates" = 'Newt Gingrich (R) 59.1% Dock H. Davis (D) 40.9%'
SELECT COUNT("Party") FROM "table_72390" WHERE "Candidates" = 'Newt Gingrich (R) 59.1% Dock H. Davis (D) 40.9%'