The sprawling 23rd District includes 34 communities in Hunterdon, Somerset and Warren counties: Alexandria, Alpha, Bedminster, Bethlehem, Bloomsbury, Bound Brook, Bridgewater, Califon, Clinton, Clinton Township, Franklin (Hunterdon), Frenchtown, Glen Gardner, Greenwich, Hackettstown, Hampton, Harmony, High Bridge, Holland, Kingwood, Lebanon Borough and Lebanon Township, Lopatcong, Mansfield, Milford, Peapack-Gladstone, Phillipsburg, Pohatcong, Raritan Borough, South Bound Brook, Tewksbury, Union, Washington Borough and Washington Township.
Voter registration skews Republican, with a third of registered voters identifying with the GOP. Democrats comprise 21 percent of those registered, and most of the rest are unaffiliated.
The district is represented by two Republicans, both first elected in 2009. Both — Assemblymen Erik Peterson, a Flemington attorney, and John DiMaio, a contractor from Hackettstown – seek reelection.
Marybeth Maciag and Maria Rodriguez are the Democratic candidates. Although they had been knocked off the primary ballot after Republicans challenged their ballot signatures, they won enough write-in votes to make it back on the ballot to compete this fall.