Original Post (2:15pm): The Senate campaign of Elizabeth Warren, the consumer advocate and Wall Street's least-favorite politician, is off to an impressive fundraising start.

According to an email from the campaign, Warren raised $3.15 million in the third quarter of the year for her bid unseat Massachusetts Sen. Scott Brown — despite only formally entering the race in September.

The money came from over 11,000 donors, the campaign said — averaging $286 per donor.

Warren raised nearly ten-times that of her nearest opponent — City Year co-founder Alan Khazei, who announced last week he raised $365,000, down from over $1 million earlier in the year.

Brown raised nearly $2 million in the second quarter, when he reported $9.6 million cash on hand. He has yet to release his fundraising totals for the most recent quarter.

Warren's total will be higher than what several Republican presidential candidates are expected to report. Former Sen. Rick Santorum, for one, revealed that his campaign raised less than $1 million in the quarter.

Update (4:20): Warren raised over twice as much as Sen. Scott Brown, who raised just $1.55 million in the quarter, The Washington Post reported. Brown has an impressive $10.5 million on hand, and leads Warren in the polls, but the declining fundraising numbers should be of concern to Republicans looking to hold onto the seat and maintain hopes of regaining control of the Senate next year.