TRENTON, N.J. -

Preliminary results of an exit poll show seven in 10 New Jersey voters say the state's economy is either worse today or about the same as it was four years ago.

The exit poll conducted for The Associated Press and the television networks by Edison Research found nearly half of New Jersey voters say the economy is the one issue that mattered most in deciding how they voted.

Nearly two-thirds of voters approve of the way Gov. Chris Christie is handling the economy.

Christie defeated Democrat Barbara Buono in Tuesday's election.

The exit poll of 1,549 New Jersey voters in 40 precincts statewide has sampling error of plus or minus 4 percentage points.