Obama's Vague Blago Response

Blago's affidavit - The 76 page complaint charges Blago with several crimes:
1) Attempt to appoint Valerie Jarrett to Obama's seat in exchange for being named secretary of health and human services, and additional demands for cash payments and corporate board appointments for his wife.
2) Essentially extortion against the Chicago Tribune from selling Wrigley and
3) Demands for campaign contributions from various individuals

Obama's Vague Response -- The following is Obama's response to a reporter's question, over his knowledge of Blago's efforts to allegedly trade Obama's Senate seat: "I had no contact with the governor or his office and, so we were not – I was not aware of what was happening" So with his response, he first claims no one of this collective 'we' were aware and quickly removes himself from the 'we' to somehow shield himself from anyone around him who might have known. Sounds a bit complex and well thought out legally to me. Vague answers like this cast doubt on his credibility even before he's in office. What if this Senate seat sale was an attempt to implicate Obama intentionally???