As part of his campaign for the job of comptroller, Liu has been running ads telling voters about how "by [age] seven [he] had to work in a sweatshop to make ends meet."
Sounds awful. Unfortunately -- or maybe fortunately -- for Liu, his mother doesn't remember her 10-year career in the garment industry in the same way.
"I never go to the factory," Liu's mother, Jamy Liu, 69, told the New York Daily News in an interview set up by her son. "I just go there and pick up some material and bring home because I had to take care of my kids."
Well, surely dad remembers?
"She give the kids allowance [for spinning balls of yarn for her] to encourage them," Joseph Liu told the News.
Maybe Mrs. Liu's old boss, Kwei Ching Liao, can offer some help?
Mrs. Liu worked "in home," Liao told the News. "Take home the piece work."
In a statement to NBCNewYork, Liu defended his recollection of the past.
He said after the interview, the Daily News' reporter asked for a pay stub to prove Liu worked int he factory, but "that's not how sweatshops actually work."
"Thirty-five years ago, I worked with my mom -- inside a sweatshop and at home. For me, it’s not a shameful past. I make no apology for the work ethic I gained from toiling away many hours in a factory, and I remain as committed as ever to exposing and ending the sweatshop system," he added.