Senate Majority Leader Mitch McConnell, R-Ky., helped Democrats raise almost $1 million on an email campaign spurred by his motion to silence Massachusetts Senator Elizabeth Warren, The Washington Post reports.

McConnell moved to stop Warren from reading a 1986 letter from Coretta Scott King during a debate over the nomination of then-Sen. Jeff Sessions, R-Ala., as attorney general. The Democratic Congressional Campaign Committee quickly mobilized, sending fundraising emails and encouraging supporters to sign a petition against Sessions, raising $767,000 in two days.

Last month, the DCCC raised $4.7 million online, a large jump from two years ago, which spokesman Tyler Law called "a reflection of the groundswell of early support and energy behind House Democrats."

In January, the DCCC raised $7.8 million, according to Roll Call, surpassing the fundraising record in an off-year month, though falling short of the $10 million reported by the National Republican Congressional Committee.

"The massive growth in our base of grass-roots donors will continue to benefit our committee and our candidates as we work to maximize gains on an expanded battlefield," he added.

Despite the large numbers, the DCCC's Republican counterpart isn't worried. They announced Monday that House Speaker Paul Ryan, R-Wisc., added over $4.4 million to the NRCC in February.

Spokesman Jesse Hunt told the Post that "money won't solve [Democrats'] problems with crafting a policy agenda that appeals to a wider range of voters."