Hillary Clinton headlined a campaign fundraiser in Manhattan Tuesday night -- rallying hundreds of supporters around the same time the U.S. State Department released hundreds of emails stemming from her time as Secretary of State.

The fundraiser, hosted by Facebook co-founder Chris Hughes and Sean Eldridge who ran a failed bid for Congress last year, came hours before the midnight quarterly fundraising deadline for federal candidates, with Clinton and other presidential contenders looking to post big numbers to demonstrate widespread support for their campaigns.

"This is our first moment to show our opponent what we're about," Clinton wrote in an email blast sent  Tuesday afternoon to supporters.

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Held at Terminal 5, a club and concert venue on West 56th Street, the 7 to 10 p.m. fundraiser was closed to media, but supporters leaving the fundraiser said actress Olivia Wilde pumped up the crowd before Clinton took to the stage at about 9 p.m. -- just around the time the State Department posted about 1,900 Clinton emails to its website under the orders of a federal judge.  

The former first lady and senator came under scrutiny earlier this year after the revelation that she used a personal email address in her public role as secretary of state between 2009 and 2013. She has said she turned over all State Department emails to the agency, while deleting her personal emails.

Clinton, joined by her top aide Huma Abedin arrived at the venue shortly after 8 p.m., waving to a line of supporters waiting to get in the venue.

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Rep. Charles Rangel (D-Harlem), Democratic State Senate Leader Andrea Stewart-Cousins and State Sen. Adriano Espaillat were also in attendance at the fundraiser where tickets ranged from $45 to $250.

"Is there any other Democrat who can beat her?" asked Lewis Winter, 87, of Chelsea, a Clinton supporter who questioned the chances of other Democratic contenders including Sen. Bernie Sanders (D-Maine) and former Maryland Gov. Martin O'Malley. "The real question is, who is going to be the Republican to challenger her?"