New Jersey governor Chris Christie has reached an historical low for gubernatorial approval ratings taken by a renowned pollster, plunging below 20 percent for a mark not seen in more than 20 years of surveys.

Christie’s approval stands at 19 percent among New Jersey voters in a poll from Quinnipiac University, versus 77 percent who disapprove. The number is the lowest of any governor Quinnipiac has measured in two-plus decades. His margin with independents is -64, and he’s underwater with Republicans by a 14-point spread.