ใครคือผู้ดำรงตำแหน่งในเขต Kentucky 8?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
Who was the incumbent in the Kentucky 8 district?It is not neccessary to use all the tables.
 table_2668367_7:  (incumbent [ VARCHAR ] district [ VARCHAR) ]
SELECT incumbent FROM table_2668367_7 WHERE district = "Kentucky 8"