Attorneys for the city argued that paid sick leave is a public health matter.
The president may think so, but other labor experts aren't convinced.
"It really is a gut punch," cleaner Alyce Toombs said of losing her job.
The city's ordinance suffered another legal defeat Wednesday.
The unionized cleaners are starting off the season without a contract.
Supporters of the law say they will appeal to the state Supreme Court if they lose Tuesday.
"If we let people pollute water in North Dakota, they can pollute water anywhere."
Would a realty-tax transfer increase help or hurt millennials?