The last popularly-elected mayor was Marcelo Cabrera , elected in 2008 with 42.08 % of the vote , who served from May 2009 to August 2009 due to legal action . The last elected mayor was Marcelo Cabrera ; he was elected in 2008 with 42.08 percent of the vote . He served from May to August 2009 , when he was permanently banned from holding public office after being convicted of adulterating tickets .