CREATE TABLE table_40173 ("Candidate" TEXT, "Votes" FLOAT, "Percentage" TEXT, "Counties" FLOAT, "Delegates" FLOAT)

What is the highest Counties when Mitt Romney was the candidate with less than 0 delegates?
SELECT MAX("Counties") FROM table_40173 WHERE "Candidate" = 'mitt romney' AND "Delegates" < '0'
SELECT MAX("Counties") FROM "table_40173" WHERE "Candidate" = 'mitt romney' AND "Delegates" < '0'