CREATE TABLE "table1_1342270_42" (
  "district" text,
  "incumbent" text,
  "party" text,
  "first_elected" real,
  "result" text,
  "candidates" text
);

Question: What was the result in the Tennessee 6 district election?
SQL: SELECT "result" FROM "table1_1342270_42" WHERE "district"='Tennessee 6';

Question: In how many districts was the incumbent Estes Kefauver? 
SQL: SELECT COUNT("district") FROM "table1_1342270_42" WHERE "incumbent"='Estes Kefauver';

Question: What is the latest year any of the incumbents were first elected? 
SQL: SELECT MAX("first_elected") FROM "table1_1342270_42";

Question: What was the result of the Tennessee 2 district election? 
SQL: SELECT "result" FROM "table1_1342270_42" WHERE "district"='Tennessee 2';