Since his July 9 decision to impose new restaurant restrictions to try to curb the steep increase in Covid-19 cases in the state, Gov. Doug Ducey was still coming under fire for not doing enough. Mayors of Phoenix, Tempe, Tucson, Flagstaff and Tolleson said in a July 10 letter to the governor they were “deeply concerned with the exponential rise” in Covid-19 cases in the state and called on Ducey to implement stronger, statewide restrictions. In a conference call organized Friday by Protect…