Ed Pastor was elected to the U.S. House in an October 1991 special election. He was re-elected in 1992 with 70 percent of the vote, defeating Republican Don Shooter. He was re-elected in 1994 with 62 percent of the vote, defeating Republican Robert MacDonald.
In 1996, he was re-elected with 65 percent of the vote, defeating Republican Jim Buster. He won re-election in 1998 defeating Republican Ed Barron with 67 percent of the vote. He faced re-election in 2000, against Republican candidate Bill Barenholtz of Yuma, Ariz., and won with 69 percent.
In 2002, he defeated Republican candidate Jonathan Barnert of Phoenix for re-election, winning 67 percent of the vote.