By CATHY BUSSEWITZ
HONOLULU (AP) - Lone Republican state Sen. Sam Slom is aiming to overcome a challenge from Democrat Stanley Chang for the seat he's held for 20 years.
If Chang wins Tuesday, Hawaii could become the only state in the country with a one-party legislative body. The National Conference on State Legislatures says the last time that happened was in 1980.
Hawaii has long been a Democratic stronghold. Democratic voters outnumbered Republicans 2-to-1 in the last presidential election.
Slom has held the seat for 20 years and is widely viewed as a fiscal watchdog. Chang is a Harvard-educated lawyer who served on the Honolulu City Council.
In the Hawaii state House of Representatives, many Democrats are running un-contested.