In a press release this afternoon, Malone says "25% of Rakestraw’s individual contributors reveal a high profile list of DC based labor unions and other like minded organizations." He accuses her of "donor shopping."
The 25 percent figure is based on the individual contributions in the most recent reporting period of her latest campaign report. It's not referring to the all the individual contributions throughout the entire campaign.
As previously noted on the blog, Rakestraw's campaign has said the D.C. donations are because her parents, Howard and Anne Romaine, are fairly well-known civil rights activists. The campaign has said those donors are family friends.
Click here to read the press release. I'd normally put it here in the blog post but the spacing gets thrown off that way.