CREATE TABLE table_1420 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "Elected" FLOAT, "Status" CLOB, "2008 Candidates" CLOB, "Results" CLOB)

How many groups of candidates are there in there in the district where the incumbent is Doc Hastings?
SELECT COUNT("2008 Candidates") FROM table_1420 WHERE "Incumbent" = 'Doc Hastings'
SELECT COUNT("2008 Candidates") FROM "table_1420" WHERE "Incumbent" = 'Doc Hastings'