Jerry Weller was elected to the U.S. House in 1994 defeating Democrat Frank Giglio with 61 percent of the vote. He was re-elected in 1996 with 52 percent of the vote, defeating Democrat Clem Balanoff.
In 1998, Weller defeated Democrat Gary Mueller with 59 percent of the vote. Weller ran unopposed in the 2000 Republican primary. He was re-elected in the general election with 56 percent of the vote against Democrat James Stevenson, an attorney.
He was re-elected in 2002 against Democrat Keith Van Duyne, an attorney, with 64 percent of the vote.
Before being elected to Congress, he served in the Illinois House (1987, 1989-95).