So, you're a little mixed up on the image thing. He posted an image with a FILE NAME that begain with DOITQ. And I believe this has been pretty thoroughly debunked, as those file IDs (which don't look like a hash at all) are entirely under the control of Twitter, not the poster. This is the post you're talking about, btw: https://twitter.com/realdonaldtrump/status/92832566755654860...

I hadn't heard the McCain prediction before, and I suspect that's going to turn out to be a bit spun too. But I'd love to see it.