CREATE TABLE table_18142 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Results" TEXT, "Candidates" TEXT)

What party does Bill McCollum belong to?
SELECT "Party" FROM table_18142 WHERE "Incumbent" = 'Bill McCollum'
SELECT "Party" FROM "table_18142" WHERE "Incumbent" = 'Bill McCollum'