CREATE TABLE table_27310 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

Name the number of district for bill shuster
SELECT COUNT("District") FROM table_27310 WHERE "Incumbent" = 'Bill Shuster'
SELECT COUNT("District") FROM "table_27310" WHERE "Incumbent" = 'Bill Shuster'