{mosads}Warren was courted by Senate Democrats looking for a big name in the race to win back the seat long held by the late Democratic Sen. Ted Kennedy. And some liberal groups have already begun fundraising for her still nonexistent campaign.

For her part, Warren has yet to definitively close the book on a Senate run, saying in July she was focused primarily on taking some time off after spending the last year building the CFPB from scratch.

At the end of July, the Treasury Department announced that Warren would be returning to Harvard Law at the beginning of August. She previously taught there before being asked by the president to come to Washington set up the new agency.