CREATE TABLE table_1342292_2 (district VARCHAR, candidates VARCHAR)

how many dbeingtrict with candidates being william b. bankhead (d) 71.3% e. m. reed (r) 28.7%
SELECT COUNT(district) FROM table_1342292_2 WHERE candidates = "William B. Bankhead (D) 71.3% E. M. Reed (R) 28.7%"
SELECT COUNT("district") FROM "table_1342292_2" WHERE "William B. Bankhead (D) 71.3% E. M. Reed (R) 28.7%" = "candidates"