COLOURFUL US boxing promoter Don King has thrown himself into the political arena by lending his voice to a Republican Internet "game" attacking Democratic presidential candidate John Kerry, the Republican National Committee announced today. The game, found on the web at www.gop.com/kerryvskerry, shows King in a boxing ring announcing a fight between Kerry and Kerry. "Ladies and Gentlemen - Welcome to Kerry versus Kerry, the battle for the Democratic Party," King announces with his trademark toothy smile and grey mane. Two likenesses of Kerry - one in blue trunks, the other in red - appear on the screen for "30...