The US House Ways and Means Committee has subpoenaed three left-wing nonprofit organisations as part of an investigation into more than $39 million (£30 million) that flowed from tech entrepreneur Neville Roy Singham, described in the report as a Marxist tycoon, to the groups. The move escalates congressional scrutiny of Singham's funding network, which critics allege has bankrolled activism seen as hostile to US interests, and raises the stakes for the organisations involved as they face compulsory demands for records.

The subpoenas, detailed in letters dated 21 July and obtained by Fox News Digital, accuse the three nonprofits of failing to hand over a single responsive document in response to earlier voluntary requests for information. Committee chairman Jason Smith, a Republican from Missouri, issued the subpoenas after that non-compliance, intensifying a probe that has also drawn commentary from national security analysts warning the Singham-linked network could pose broader concerns. The article does not name all three organisations or specify a deadline for compliance in the portion available.