The Iowa Caucus for the Republican primary is Monday 15 January. Following is a look at the process, structure, and the candidates’ ag platforms.  Like every four years since the 1970s, Iowa holds the first presidential nominating contest in the country. It is an odd institution; it’s not a primary with open polls (the first of which is held in New Hampshire), and even more so than a primary, its outcome relies on turnout and participation. To be sure, with primaries, it is the core base of a party that turns out for the vote, but for the caucus it is even more reliant on highly interested and motivated voters which can give dark horse candidates a better chance of propelling – or at least lengthening – their c...