CREATE TABLE table_62255 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Results" CLOB)

In what district was incumbent Russ Carnahan elected after 2000?
SELECT "District" FROM table_62255 WHERE "First elected" > '2000' AND "Incumbent" = 'russ carnahan'
SELECT "District" FROM "table_62255" WHERE "First elected" > '2000' AND "Incumbent" = 'russ carnahan'