Question: what's the result for first elected in 1948 , 1964
SQL: SELECT "Result" FROM "1-1341472-15" WHERE "First elected" = '1948 , 1964';

Question: what's the first elected with district Illinois 18
SQL: SELECT "First elected" FROM "1-1341472-15" WHERE "District" = 'Illinois 18';

Question: what's the party with candidates  Jerry Weller (R) 51.77% Clem Balanoff (D) 48.23%
SQL: SELECT "Party" FROM "1-1341472-15" WHERE "Candidates" = 'Jerry Weller (R) 51.77% Clem Balanoff (D) 48.23%';

Question: what's the party for the first elected in 1980
SQL: SELECT "Party" FROM "1-1341472-15" WHERE "First elected" = '1980';

Question: what's the result with district Illinois 15
SQL: SELECT "Result" FROM "1-1341472-15" WHERE "District" = 'Illinois 15';

Question: what's the total number of candidates for first elected in 1948 , 1964
SQL: SELECT COUNT("Candidates") FROM "1-1341472-15" WHERE "First elected" = '1948 , 1964';