Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_72950 ( "District" text, "Incumbent" text, "Party" text, "First elected" real, "Results" text, "Candidates" text )

### Question ###
Who were the candidates when the first elected was a republican in 1998?

### Accurate SQL ###

SELECT "Candidates" FROM table_72950 WHERE "First elected" = '1998' AND "Party" = 'Republican'