Question: What are the results of the incumbent who was first elected in 1996?
SQL: SELECT "Results" FROM "2-1805191-21" WHERE "First elected" = 1996.0;

Question: Who is the incumbent who was first elected before 2002 from the Maryland 3 district?
SQL: SELECT "Incumbent" FROM "2-1805191-21" WHERE "First elected" < 2002.0 AND "District" = 'Maryland 3';

Question: What is the party of the Maryland 6 district?
SQL: SELECT "Party" FROM "2-1805191-21" WHERE "District" = 'Maryland 6';