(CNN) - Democrat Elizabeth Warren outraised incumbent Sen. Scott Brown in the heated Massachusetts Senate race by more than $4.6 million in the third quarter.
Warren, a Harvard law professor, took in $12.1 million compared to $7.45 million for the Republican lawmaker, according to numbers announced by both campaigns Monday.
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While the race has been tight from its start, the contest gained more attention in the third quarter months of July, August and September. The time window included Warren's prime time speech at the Democratic National Convention, as well as continued sparring over Warren's claims to Native American roots.
Also during the third quarter, Warren and Brown took part in their first debate–a showdown that made headlines for the repeated barbs exchanged between the two candidates. They have had two more debates this month.
"Tens of thousands of people across Massachusetts have joined this campaign because they know that Elizabeth will fight for them in the U.S. Senate," said Michael Pratt, Warren's campaign finance director
Warren's campaign said they raised more than $7 million in September alone. According to the campaign, 80% of donations were $50 or less and more than half were $25 or less. Her double-digit million dollar haul marks a big jump from the previous quarter, when she brought in $8.6 million between April and June.
While Warren reported raising more than Brown, the Republican's campaign said they ended the third quarter with $10.2 million cash on hand. Warren's team, meanwhile, did not say how much money they have in the bank.
Brown's campaign said the third quarter was their most successful three months this cycle. The incumbent senator raised $5 million between April and June.
"As we head into the final weeks of the campaign, Scott Brown's message of being an independent fighter for Massachusetts jobs is clearly resonating with voters," said John Cook, Brown's campaign finance director.
Recent polls show the contest is still locked in a dead heat. One poll, from Western New England University, showed Warren edging Brown 50%-45%. Another survey, from WBUR, showed Brown with the advantage, netting the support of 47% of likely Massachusetts voters compared to 43% for Warren. Margins in both polls were within the sampling error.