Democratic presidential candidate and Sen. Cory Booker addresses a crowd during a campaign trail block party on September 29, 2019 in Columbia, South Carolina.
CNN  — 

Cory Booker raised roughly $6 million in the third quarter, posting his best fundraising quarter to date following a dramatic 10-day fundraising push, his campaign announced Tuesday.

This included $2.16 million in the past 10 days, after the New Jersey Democrat announced he would drop out of the race if his campaign could not meet an urgent fundraising goal.

The third quarter is typically a difficult fundraising period for campaigns. But Booker’s haul dwarfed his second quarter total by around $1.5 million.

With the infusion of cash, the campaign now plans to hire 40 staff, open new field offices, launch a ballot access program, and make a six-figure investment to grow its email list, campaign manager Addisu Demissie said.

The campaign’s email list, in particular, has been a glaring weakness of Booker’s campaign to date. Relative to other candidates, Booker started the 2020 campaign with a much smaller list, Demissie acknowledged, having instead focused in 2016 and 2018 on campaigning for other candidates.

Now, the campaign will aim to raise $3 million in October, Demissie said.

The campaign did not reveal its cash on hand for the quarter, but Demissie said that figure would show that if not for their late fundraising push, “we would have had enough money to survive, but not to grow.”