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RANCHO PALOS VERDES, CA - MARCH 10: Donald Trump (C) speaks alongside Pete Bevacqua, Chief Executive Officer of the PGA of America (L) and Derek Sprague, President of PGA America during a news conference announcing the PGA Grand Slam of Golf site at Trump National Golf Club Los Angeles March 10, 2015 in Palos Verdes Estates, California. (Photo by Kevork Djansezian/Getty Images)

RANCHO PALOS VERDES, CA - MARCH 10:  Donald Trump (C) speaks alongside Pete Bevacqua, Chief Executive Officer of the PGA of America (L) and Derek Sprague, President of PGA America during a news conference announcing the PGA Grand Slam of Golf site at Trump National Golf Club Los Angeles March 10, 2015 in Palos Verdes Estates, California. (Photo by Kevork Djansezian/Getty Images)