If I were a politician, I would not have accepted Blago's nomination. To do so certainly could be interpreted as an admission that one was the winning bidder in his "pay to play" auction.

At this point, we all probably figure that now that the plot has been exposed, Burris (or whoever might have been chosen) is very likely to be entirely innocent. Nevertheless, he pretty much has to be rejected, just because Blago's choice, whomever that might be, cannot be accepted.

Technically, it is not up to the "Senate Democrats" to decide on this issue ~ it is the Senate's prerogative. Of course, the Dems are the majority party of the incoming body, and while Congress is not in session, the party caucus can meet and decide how to vote as a bloc, determining the outcome of a majority vote when the Senate eventually does convene.

The happiest outcome would be for Blago to be quickly impeached and ousted, whereupon his successor (the current Lt Gov) could nominate the selfsame Mr. Burris...