ActBlue is a 527 political action committee launched in 2004 to act as “the online clearinghouse for Democratic action.” It is the 527 PAC affiliate of the nonprofit ActBlue Charities and the activist organization ActBlue Civics, which perform similar pass-through roles for 501(c)(3) and 501(c)(4) organizations, respectively.
ActBlue was started in 2004 by Ben Rahn and Matt DeBergalis as a fundraising platform for left-wing organizations and candidates. According to its own figures, ActBlue has helped to raise $2.4 billion for its clients since its creation.
ActBlue is divided into three component organizations, each of which deals with a specific type of donation. ActBlue Non-Federal deals with contributions to state-level candidates and political action committees, ActBlue Civics manages contributions to 501(c)(4) social welfare organizations, and ActBlue Charities manages contributions to 501(c)(3) nonprofits.
As part of its fundraising service, ActBlue provides fundraising software that allows its clients to maximize their fundraising activity without building out their own fundraising platform. These tools are available on all three of the organization’s platforms.
2018 Election Cycle
In August 2018, ActBlue surpassed $1 billion in contributions to Democratic Party PACs and political candidates for the 2018 election cycle. This amount accumulated through small-dollar donations, which averaged $34.
As a reaction to the high number of small-dollar donations ActBlue receives, some Republican Party politicians voiced concerns in October 2018 that there is no ActBlue equivalent aiding Republicans, leaving them in a fundraising disadvantage. Representative Jim Banks (R-Indiana) on October 23rd started StopSpeakerPelosi.com to raise small-dollar donations averaging $46 evenly distributed for 23 crucial GOP house elections needed to maintain a majority. As of October 26th, the organization has raised nearly $67,000. Among the campaigns supported by StopSpeakerPelosi, it includes Representatives Rod Blum (R-Iowa), Pete Sessions (R-Texas), Barbara Comstock (R-Virginia), David Brat (R-Virginia), and Carlos Curbelo (R-Florida).
ActBlue publishes a client list of political action committees that use ActBlue’s website as a way to raise funds.  This list of solely left-of-center groups includes: Color of Change PAC, the Collective PAC, and 2016 Democratic Presidential candidate Hillary Clinton’s Onward Together PAC. 
Hurricane Michael (2018)
On October 11, 2018, the Washington Free Beacon reported that Sen. Bill Nelson (D-Florida) released an email and a tweet urging people to donate to ActBlue for hurricane relief, despite the organization’s role as a Democratic Party fundraising service and not a disaster relief charity.
Erin Hill serves as executive director of ActBlue. 
Jonathan Zucker, the founder of It Starts Today, worked at ActBlue from 2005-2008 as chief operations officer and counsel, senior strategist, executive director, and as a member of the organization’s board of directors. Prior to his tenure at ActBlue, Zucker acted as the national director of operations for finance at the Democratic National Committee.