They "uncovered" something that's in financial statements, posted on the agency's website, on the org's website... way to go. You can go read 50 pages of audit that's been publicly available because they got government funding.
You can also see the filings that show that Lindsey Graham doesn't get paid for being on their board, nor do any of their directors, and you can go see what they did spend money on. There's a more or less equivalent org that draws its directors from Democrats like this one does Republicans. Speaking of "uncovering" you can go read the press coverage from 2018 when the first Trump administration pushed to cut the funding of the National Endowment of Democracy (which sits above these two party-associated organizations). Of course this was in a time where the Trump administration actually behaved as if Congress controlled the funding.
For an amusing detail you can read the letter sent by senators at the time defending the NED's funding, and observe the signature of Marco Rubio, who now purports to have taken over USAID in his capacity as Secretary of State.
As far as I can tell there's not even any evidence that DOGE did anything specifically relating to this group beyond just that they killed USAID. DOGE fan Twitter accounts have posted about it, just linking to those same already-available filings. Fans just reading down the list of things USAID funded gets you this same result. It's definitely a good place to go if you want to see a bunch of incurious people posting "head exploding" emojis.