Gov. Charlie Crist's special assistant in South Florida has resigned over the governor's attendance at a fundraiser for his U.S. Senate campaign attended by business leaders who back lifting sanctions on Cuba. The fundraiser -- story here -- was co-hosted by Alfredo Duran, a lawyer and prominent supporter of opening dialogue with the communist regime. Chris Miles, 20, joined the governor's office shortly before Crist left the Republican party to run as an independent in late April. He previously worked for Sen. George LeMieux and for U.S. Rep. Lincoln-Diaz Balart's re-election campaign. "I appreciate the opportunity that I have had...