During an appearance on MSNBC’s “The Weekend,” the Republican mayor of Mesa, Arizona spoke about his recent endorsement of Vice President Kamala Harris and warned a return of Donald Trump to the Oval Office would be devastating to cities like his. Speaking with co-hosts Symone Sanders-Townsend and Michael Steele, Mayor John Giles explained that he has been mayor since Barack Oabama was president and that his city suffered the most during Donald Trump’s four years in office. Gikles, who drew national attention with a column in the AzCentral where he announced his support for Vice President Kama…