CREATE TABLE table_18156 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" CLOB, "Results" CLOB, "Candidates" CLOB)

What were the candidates in the district that first elected in 1980?
SELECT "Candidates" FROM table_18156 WHERE "First elected" = '1980'
SELECT "Candidates" FROM "table_18156" WHERE "First elected" = '1980'