It is preliminary estimated that Donald Trump won in the Republican Party caucuses in Iowa, reports CNN. Trump has already secured 17 delegates from the state of Iowa for the Republican Convention, where the party will nominate its candidate. Photo: Preliminary results of the Republican Party caucuses in Iowa (edition.cnn.com) Caucuses in Iowa In most states, elections proceed as usual: voters need to show up, cast their vote, or, in extreme cases, send in a mail-in ballot. In Iowa, voters must appear in person. Caucuses are gatherings of the public that take place in venues like churches, sch…