Here's a bit more from the statement, which goes some way to explaining why Blagojevich might have been reckless enough to put a Senate seat up for sale even while knowing that he was under federal investigation:

The charges focus, however, on events since October when the Government obtained information that Blagojevich and Fundraiser A, who is chairman of Friends of Blagojevich, were accelerating Blagojevich's allegedly corrupt fund-raising activities to accumulate as much money as possible this year before a new state ethics law would severely curtail Blagojevich's ability to raise money from individuals and entities that have existing contracts worth more than $50,000 with the State of Illinois. Agents learned that Blagojevich was seeking approximately $2.5 million in campaign contributions by the end of the year, principally from or through individuals or entities - many of which have received state contacts or appointments - identified on a list maintained by Friends of Blagojevich, which the FBI has obtained.