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_60234 ( "District" text, "Incumbent" text, "Party" text, "First elected" real, "Results" text )

### Question ###
What is the highest First Elected, when Results is 'Re-elected', and when Incumbent is 'Lincoln Davis'?

### Accurate SQL ###

SELECT MAX("First elected") FROM table_60234 WHERE "Results" = 're-elected' AND "Incumbent" = 'lincoln davis'