CREATE TABLE table_79087 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Results" TEXT)

Who is the incumbent who was first elected before 2002 from the maryland 3 district?
SELECT "Incumbent" FROM table_79087 WHERE "First elected" < '2002' AND "District" = 'maryland 3'
SELECT "Incumbent" FROM "table_79087" WHERE "District" = 'maryland 3' AND "First elected" < '2002'