Democrat Phil Murphy held off Republican Jack Ciattarelli to win the New Jersey governor's race.
Numerous media outlets called the race Wednesday night with Murphy leading by about 1%.
Despite the loss, Republicans gained ground in New Jersey.
Joe Biden had beat then-President Donald Trump in the Garden State by more than 15% in 2020.
Murphy's win is a sigh of relief for many Democrats. They lost the governorship in Virginia when Glenn Youngkin defeated Terry McAuliffe.
The loss was seen as a rebuke of the Biden presidency. Biden had beat Trump in Virginia by 10%.