Republican presidential candidate Ben Carson has business ties with a Pittsburgh dentist who pleaded guilty to health care fraud, Associated Press reports. Dr. Alfonso A. Costa, who served on the board of Carson's charity and continues to lead some fundraising efforts, faces 10 years in federal prison Carson had invested in real estate deals with Costa "I will confirm they are best friends and that they do hold business investments together," Carson campaign spokesman Doug Watts told AP; Costa d
Source: Bloomberg.com news