CREATE TABLE table_18396 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

Name the first elected for the republican party
SELECT "First elected" FROM table_18396 WHERE "Party" = 'Republican'
SELECT "First elected" FROM "table_18396" WHERE "Party" = 'Republican'