From YT: In which John seeks to understand the strange and labyrinthine process used by the Republican and Democratic parties to select a nominee for President, focusing on the great state of Missouri, where the races were close but the delegate counts weren't. Along the way, there's a bit of discussion about political parties in U.S. politics, congressional redistricting and gerrymandering, superdelegates, Donald Trump, Ted Cruz, John Kasich, Hillary Clinton, and Bernie Sanders.

A little more historical background on the emergence of primaries and caucuses in American politics: http://blog.constitutioncenter.org/20...

All the delegate math you can handle: http://projects.fivethirtyeight.com/e... and all the primary polls/forecasts you can handle: http://projects.fivethirtyeight.com/e...

Know your superdelegates and who (if anyone) they've pledged to support at the Democratic convention in Philadelphia: http://www.thegreenpapers.com/P16/D-U...
Lots of information on redistricting in Missouri after the 2010 census: https://ballotpedia.org/Redistricting...
More information on how the Missouri Republican party allocates its delegates for the 2016 Republican convention in Cleveland: http://www.thegreenpapers.com/P16/MO-R

Thanks to Rosianna for illustrations (http://youtube.com/papertimelady) and Stan Muller for the video title and help understanding political parties in the U.S.