"State law does not allow sheriffs to deny an Iowan the right to carry a weapon based on physical ability."
Sounds like State law needs looking at again then, by someone not registered as blind.
"he believes that once she becomes of legal age to purchase firearms, she should not be excluded from her second amendment rights."
Pity they can't realise the disconnect between second amendment rights, and common sense rights and responsibilities in these times. Again something that needs looking at and amending further.