The networks have called Donald Trump the winner on the Republican side, and it looks like the margin of victory will be large. Currently, John Kasich, who is in second place, has only half of Trump’s vote total.
It’s a good win for Trump, but how good?
Around the time of the Iowa primary, I speculated that Trump needs at least one-third of the vote in the early contests to establish himself as having a good shot at the nomination. …