Nearly a dozen big Republican donors backing different presidential candidates are coming together to help fund an advertising campaign attacking front-runner Donald Trump, who faced sharp criticism from rivals this week for his inflammatory comments about Muslims. Matt David, spokesman for the group planning the attack, a Super PAC called New Day for America, which is supporting Ohio Governor John Kasich's presidential bid, said 10 new donors had pledged money in the two days since Politico reported Thursday evening the group's plans to attack Trump in New Hampshire....