In a shocking and befuddling new Democratic presidential poll, New York City Mayor Bill de Blasio polls at an unheard of -4 percent.

Pollsters have reviewed the methodology extensively and yet can’t come to a conclusion how he fell under zero.

“This has never happened before,” one of the lead pollster’s said. “We really aren’t sure how this was possible.”

Coming in just ahead of de Blasio was Eric Swalwell (0 percent) and Steve Bullock (0 percent). Of the 74 candidates listed on the poll, only Joe Biden received over 10 percent.