Mayor of Iowa City and the Mayor of Des Moines I believe, so I worded it incorrectly. I read yesterday that the Cedar Rapids Mayor and the Dubuque Mayor or taking a similar stance with them. From what I learned yesterday, they do have the power to shut down their county if they deem necessary, however they don't think it will send a powerful enough message to the people. They would rather Governor Reynolds make that call so people will take that stay at home mandate more seriously.
Sooner or later though, these mayors are going to have to stand their ground and make a decision, which I believe in those areas would be the correct one to make. If Governor Reynolds doesn't think this is serious enough at this point to shut down the entire state, even though a third of the counties in Iowa have a case, then these other people that have power need to act in their city's / county's best interest.