Sen. Scott Brown (R-Mass.) raised an impressive $5 million in the last three months, a total surpassed by few candidates — except his opponent, Democrat Elizabeth WarrenElizabeth Ann WarrenTrump to nominate budget official as next consumer bureau chief Sessions floats federal law that would protect states that decriminalize marijuana Bank regulator faces backlash over comments on racism MORE, who brought in a whopping $8.6 million for her campaign.

Brown's strong fundraising has kept him ahead of Warren in cash on hand, however. He now has $15.5 million to spend on the race, while Warren has $13.5 million in the bank. 

Brown has also been spending at a fast pace. Despite his strong fundraising total, he spent $4.5 million in the quarter, and only banked approximately $500,000 for the fall.

Neither candidate will be short on money for the campaign. Their combined total already far surpasses the approximately $22.6 million spent in the 2010 race that Brown won.

Brown and Warren are locked in a tight race, which The Hill rates a "tossup."