My, oh, my—-that didn’t take long.

According to documents filed late last night with the city campaign finance office, Mayor Adrian M. Fenty has already raised over $2 million for his 2010 re-election campaign.

It’s an absolutely staggering sum, considering both the lousy state of the economy and that for the whole of his 2006 election campaign, he raised a total of about $3.9 million. With $2,042,225.63 already banked, Fenty’s gotten more than halfway to matching that little more than three months since announcing his re-election push.

If any potential challengers are looking for signs of weakness, they’re not to be found in the 440-page report. The haul comes from 2,126 different donors, with about 750 having given the maximum $2,000 donation.

Thus far, the campaign’s spent about $90,000—-most of that for supplies and other arrangements for Fenty’s Dec. 6 birthday party/fundraiser held at the home of developer Chris Donatelli. And $20,000 of that is payment for campaign money man John Falcicchio, who LL is going to say earned every cent of that.