The Internet Archive has launched a huge archive of everything that Donald Trump has said on video. At least in news interviews, rallies, etc. since 2009. You may have noticed he has a habit of denying things said before. As of this writing it's just shy of 800 videos and what I can only assume is hundreds of hours of bloviating.
I find this really interesting as, in a bit of synchronicity, I've been reading The Daily Show (The Book), which is an oral history of the show. This cataloguing of what politicians say is something that, surprisingly, The Daily Show pioneered back in the day. Or at least they were the ones to actually make use of contrasting footage.
A fair bit of time in the book is dedicated to the logistics necessary to be able to juxtapose clips of politicians contradicting themselves. What they had to do with a team of interns and researchers and more DVRs than anyone should own, we can now do with just an internet connection.
via Nieman Lab