WASHINGTON — The announced Sunday that it and its allies raised a combined $40 million on the heels of Vice President Kamala Harris' speech Thursday at the Democratic National Convention.

The windfall brings the total raised for Harris' election efforts to $540 million since President Joe Biden dropped out of the race on July 21 and endorsed her, according to the campaign.

NBC News cannot independently verify the numbers because the next round of Federal Election Commission data does not become available until Sept. 20.

A third of donations last week were from first-time contributors, campaign chair Jen O'Malley Dillon said in a campaign memo. She also noted that just after Harris spoke Thursday night, the campaign and its allies saw "our best fundraising hour since launch day."

Fundraising numbers reflect an accumulation from the Harris campaign, the Democratic National Committee and joint fundraising committees, O'Malley Dillon said.

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