Tài liệu tham khảo WikiPedia: Ron_Kirk http://abcnews.go.com/blogs/politics/2009/02/presi... http://www.politico.com/news/stories/0109/18135.ht... https://www.usatoday.com/story/news/2013/01/22/oba... https://www.washingtonpost.com/blogs/in-the-loop/p... https://blogs.wsj.com/washwire/2009/03/18/senate-c... https://web.archive.org/web/20121111161916/http://... https://www.pbs.org/newshour/vote2002/races/tx_kir...
