New Jersey doesn't necessarily hold Governors accountable: Brendan Byrne won re-election to a second term in 1977 despite his support for a controversial state income tax, and Jim Florio nearly won re-election in 1993 — two years after he was arguably the most unpopular Governor in state history.
Democrats lost seventeen Assembly seats in Byrne's 1975 mid-term election. Called "One-term Byrne," the Governor faced ten opponents in the 1977 Democratic primary, including two incumbent Congressmen, an incumbent State Senator, and a former member of his own cabinet; he won renomination with 30% of the vote, and then scored a come-from-behind victory against Raymond Bateman in the general election. In 1991, Florio's mid-term election, Democrats lost ten Senate seats and 21 Assemblys seats, capturing control of both houses. But by 1993, Florio came within 26,093 votes of winning a second term.