"The Arab League tells us to go in and take out Qaddafi. We've spent billions of dollars already with respect to the Arab League. Billions of dollars, because they told us to do it. Why aren't they paying for it? They don't like Qaddafi, Qaddafi's been a terrible thorn in their side"

Donald Trump is questioning why the Arab League is not spending for the expenses associated with taking out Qaddafi. He is indicating that the Arab League has asked the US to get Qaddafi, and the United States has actually currently invested billions of dollars in reaction to this request. Trump is implying that the Arab League ought to be paying for the expenses associated with getting Qaddafi, as they are the ones who asked the US to do it in the first place. He is also implying that Qaddafi has actually been a major issue for the Arab League, and they need to be willing to spend for the costs connected with taking him out.