Does Lautenberg have an Unanue problem?

Residency could be the issue of the week in the Democratic primary for U.S. Senate. According to a report from Politics1.com, four-term incumbent Frank Lautenberg claimed a homestead property tax exemption by declaring his Washington, D.C. condo as his permanent residence, and notes that a concierge at Lautenberg’s Bergen County condo says that he rarely stayed there over the last few years and “only recently began using the apartment again in the last couple of months.” Lautenberg’s wife lives in New York City, where she is registered to vote.

Lautenberg’s office says the Senator did not take a homestead property tax exemption for his place in Washington, and said that a D.C. government computer system error mistakenly gave tax breaks to people that did not qualify. Lautenberg, his office says, uses his New Jersey condo when he’s not in Washington and picks up his own mail there.

Does Lautenberg have an Unanue problem?