Table schema:
CREATE TABLE table_1341472_15 (party VARCHAR, candidates VARCHAR)

Question: what's the party with candidates  jerry weller (r) 51.77% clem balanoff (d) 48.23%
SQL: SELECT party FROM table_1341472_15 WHERE candidates = "Jerry Weller (R) 51.77% Clem Balanoff (D) 48.23%"