Article from Feb 19 with similar Senate details and children's hospital donations,
Rod Blagojevich's crimes: Selling Obama's senate seat and shaking down a kids hospital for donations
https://www.dailymail.co.uk/news/fb-8020651/Rod-Blagojevichs-brazen-schemes-sell-Obamas-senate-seat-shake-childrens-hospital.html
2008 New York Times article (they require subscription to read)
https://www.nytimes.com/2008/12/09/us/politics/10Illinois.html
2008 nbc article
http://www.nbcnews.com/id/28139155/ns/politics/t/feds-governor-tried-auction-obamas-seat/#.XlBcf5VKjIU