CREATE TABLE table_3186 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" CLOB, "Result" CLOB, "Candidates" CLOB)

When dennis ross (r) unopposed is the candidate what is the party?
SELECT "Party" FROM table_3186 WHERE "Candidates" = 'Dennis Ross (R) unopposed'
SELECT "Party" FROM "table_3186" WHERE "Candidates" = 'Dennis Ross (R) unopposed'