Wright Patman ผู้ดำรงตำแหน่งอยู่ในพรรคใด?ไม่จำเป็นต้องใช้ตารางทั้งหมด
What party did incumbent Wright Patman belong to?It is not neccessary to use all the tables.
 table_18521:  "District" [ text]  "Incumbent" [ text]  "Party" [ text]  "Result" [ text]  "Candidates" [ text] 
SELECT "Party" FROM table_18521 WHERE "Incumbent" = 'Wright Patman'