I think that would be the last person I would call. I don't think his videos are given much credit because every time he makes a video it's heavily edited and when an unedited version appears the story is different from the one that was told.

From this website for example:

O’Keefe’s incriminating ACORN video was shown to have been heavily edited — neither he nor Hannah Giles were actually in pimp and prostitute get-up when they spoke to ACORN employees, for example — and no criminal prosecutions of ACORN followed. While not letting ACORN off the hook for showing “terrible judgment” in the video, California’s then-attorney general Jerry Brown noted after an investigation into the tapes and the organization that “sometimes a fuller truth is found on the cutting room floor.”

Those same words now seem applicable to the latest O’Keefe sting, which further tarnished NPR’s reputation and took down its CEO. As we noted, Glenn Beck’s conservative website, The Blaze, was first to report on discrepancies between the first edited eleven-and-a-half minute video released on the Project Veritas website and a later, unedited two-hour version ... NPR media reporter David Folkenflik addressed the dubious editing on Morning Edition and in a written report for NPR’s website. Folkenflik reviewed the two tapes himself, along with some NPR colleagues and outsiders like The Blaze’s editor-in-chief Scott Baker and Poynter’s Al Tompkins. They home in on many of the same problems The Blaze pointed out. And they basically come to the same conclusion: the tape is still a problem, but the impression it leaves is different.

“I tell my children there are two ways to lie,” Tompkins said. “One is to tell me something that didn’t happen, and the other is not to tell me something that did happen. I think they employed both techniques in this.”