It is definitely craftily edited with the intent of riling people up. The allegations might still be true and we will have to see what else comes of it.
I am sympathetic to undercover video, and I think it's a little slimy for news outlets to cover this in a way that tries to delegitimize the content by casting aspersions on how PVA got the video. There is plenty to take issue with already. It's an edited video that makes bold allegations without proof beyond a doubt. It does not directly tie Hillary to the actions that took place, despite O'Keefe's best attempts. It stokes anti-Sorosism, like all the best right wing conspiracies. It misleads viewers into thinking something as simple and classic as bird dogging is a new Democratic code word for some heinous action. And it ignores the fact that even if agitators were placed at Trump rallies to rile up the crowd and capture media attention, Trump condoned the violence against them. I don't think anything revealed in these videos is unexpected or shocking. PACs and campaigns have an interest in gathering protestors and making sure they can make it to events in large numbers. That's not to say the tactics aren't underhanded, and shouldn't be scrutinized. I think they should be. I think ultimately it is better that this video exists, so such claims are out in the open.
The housing case happened a long time ago, and would be easy to hand wave. "I've learned," or "I've changed." He wouldn't even need to apologize. We already know he's not going for that black vote, so he only needs to make white people think he's less racist. More damning, and a better tack, would be to move against his recent comments on the guilt of the Central Park five. He still believes they are guilty, despite exoneration on DNA evidence. She should press him on why.