FIRST ON FOX: ActBlue co-founder Matt DeBergalis pleaded the Fifth Amendment during his closed-door deposition before three key House committees, sources familiar with the matter told Fox News Digital.

The Committee on House Administration, House Oversight Committee, and House Judiciary Committee are conducting a joint investigation into ActBlue, a massive fundraising platform for Democrats, over allegations that lax fraud prevention standards may have allowed foreign donations to seep into U.S. campaigns.

DeBergalis’ deposition, which was scheduled for Thursday morning, lasted less than half an hour. FOX News saw DeBergalis entering and exiting the committee room within roughly 25 minutes.

FAR-LEFT POLITICIANS STILL USING ACTBLUE AS 88-YEAR-OLD DISPUTES DONATING NEARLY $150,000 TO FUNDRAISING GIANT

Fox News Digital reached out to ActBlue for comment. Fox News Digital also reached out to the majority and minorities of each of the three committees.

Pleading the Fifth Amendment is not evidence of wrongdoing. ActBlue has repeatedly denied running afoul of the law during the course of Republicans’ probe.

The Committee on House Administration, which has jurisdiction over U.S. election laws, first opened a probe into ActBlue in 2023. Chairman Bryan Steil, R-Wis., accused the group of potentially accepting foreign or fraudulent donations when not requiring a credit card CVV number for contributions.

ActBlue has since updated its donation requirements with a CVV mandate.

A report released by the committees in April 2025 claimed that “ActBlue executives and staff are aware that both foreign and domestic fraudulent actors are exploiting the platform but do not take the threat seriously.”

The platform’s current CEO invoked the Fifth Amendment during a public congressional hearing earlier this year.

This story is breaking and will be updated…