Question: what's the party with candidates  jerry weller (r) 51.77% clem balanoff (d) 48.23%
Schema: create table table_1341472_15 (party varchar, candidates varchar, PRIMARY KEY (party))
SQL: select party from table_1341472_15 where candidates = "jerry weller (r) 51.77% clem balanoff (d) 48.23%"