CREATE TABLE table_name_72 (district INT, took_office VARCHAR, party VARCHAR, senator VARCHAR)

What is the district where Steve Carriker is the Democratic Senator and he took office later than 1988?
SELECT MAX(district) FROM table_name_72 WHERE party = "democratic" AND senator = "steve carriker" AND took_office > 1988
SELECT MAX("district") FROM "table_name_72" WHERE "democratic" = "party" AND "senator" = "steve carriker" AND "took_office" > 1988