CREATE TABLE table_45277 ("Senator" CLOB, "Party" CLOB, "District" FLOAT, "Home Town" CLOB, "Took Office" FLOAT)

What is the district where Steve Carriker is the Democratic Senator and he took office later than 1988?
SELECT MAX("District") FROM table_45277 WHERE "Party" = 'democratic' AND "Senator" = 'steve carriker' AND "Took Office" > '1988'
SELECT MAX("District") FROM "table_45277" WHERE "Party" = 'democratic' AND "Senator" = 'steve carriker' AND "Took Office" > '1988'