(NewsNation) — On the first day of her presidential campaign, Vice President Kamala Harris brought in over $49.6 million in donations, her campaign confirmed to NewsNation.

The nonprofit fundraising platform ActBlue first shared the news via X, adding: “This has been the biggest fundraising day of the 2024 cycle. Small-dollar donors are fired up and ready to take on this election.” They shared a slightly smaller number Sunday, but the campaign says it grew before the night ended.

Previously, ActBlue said Harris’ campaign raked in more than $27 million in the first five hours of its activation, which it attributed to grassroots supporters.

“I want to offer my full support and endorsement for Kamala to be the nominee of our party this year,” Biden wrote on X in the hour following his announcement. “Democrats — it’s time to come together and beat Trump. Let’s do this.”

Harris shared a statement thanking Biden for his leadership, adding that his “remarkable legacy of accomplishment is unmatched” and she will do her best to continue it when she competes for the White House this November.

“I will do everything in my power to unite the Democratic Party—and unite our nation—to defeat Donald Trump and his extreme Project 2025 agenda,” she said in a statement hours after receiving the commander in chief’s endorsement. “We have 107 days until Election Day. Together, we will fight. And together, we will win.”

Biden-Harris campaign funds

Her Sunday boost in funding adds to the already large pool from the Biden-Harris campaign, which recently reported just over $91 million on hand.

Allied Democratic campaign committees brought the total at his disposal to more than $240 million, leaving Harris with a nice cushion as she reportedly continues to shore support in Washington.

Since that campaign was set up in both Biden and Harris’ names, she also has access to those funds, Kenneth Gross, a senior political law counsel and a former associate general counsel for the Federal Election Commission, told the Associated Press earlier in July.

Democratic support

• Chicago Mayor Brandon Johnson
• Rep. Adam Schiff, California
• Sen. Tammy Baldwin, Wisconsin
• Sen. Chris Coons, Delaware
• Rep. Jim Clyburn, South Carolina
• Sen. Mark Kelly, Arizona
• Rep. Maxwell Frost, Florida
• Illinois Gov. JB Pritzker
• The CBC Political Action Committee (CBCPAC) released a statement on behalf of caucus Chair Steven Horsford of Nevada and CBCPAC Chair Gregory Meeks of New York
• Former President Bill Clinton and former Secretary of State Hillary Clinton
• Pennsylvania Gov. Josh Shapiro
• The largest political action committees representing communities of color — AAPI Victory Fund, The Collective PAC, and Latino Victory Fund
• Rep. Jasmine Crockett, Texas
• Rep. Pramila Jayapal, Washington
• Rep. Rosa DeLauro, Connecticut
• Rep. Cori Bush, Missouri
• Rep. Jamie Raskin, Maryland
• North Carolina Gov. Roy Cooper
• California Gov. Gavin Newsom
• Secretary of Transportation Pete Buttigieg
• All 50 Democratic Party state chairs, Reuters reported

Nexstar’s Michael Bartiromo and NewsNation’s Patrick Djordjevic and Damita Menezes contributed to this report.