ฝ่ายใดที่ระบุไว้ใน Pennsylvania 8?ไม่จำเป็นต้องใช้ตารางทั้งหมด
What are the parties listed for Pennsylvania 8?It is not neccessary to use all the tables.
 table_28929:  "District" [ text]  "Incumbent" [ text]  "Party" [ text]  "Result" [ text]  "Candidates" [ text] 
SELECT "Party" FROM table_28929 WHERE "District" = 'Pennsylvania 8'