At this point it’s hard to see how Donald Trump doesn’t get the Republican nomination. He did well in Iowa (24.3%) and won handily in New Hampshire (35.3%), South Carolina (32.5%), and Nevada (45.9%).
According to the Wiki GOP 2016 Primary page, as I write this, Trump has 32.72% of the votes cast so far, which gives him 82 delegates. The second-place pair, Rubio and Cruz, have about 20% of the votes each, which gives them 16 and 17 delegates, respectively.
The math is looking pretty good for Trump. It’s hard to see what slows down that train!