Official Sanctuary City status is unnecessary in a city which already showers its kindnesses and humanity upon others. Sanctuary is a state of being as much as it is an official designation.
The problem now is that, regardless of the outcome of the election, the issue has become a political chess piece: Pass the designation and the Feds both look at Tucson with renewed interest regarding immigration and can squeeze the City financially. Should the designation fail, our national leadership will use that to bolster its positions regarding immigration: "See, even the Border cities do not want this." In short, whatever the outcome of the upcoming election, we now have a losing proposition on our hands.