Trump trounced everybody in a liberal state. But trounced means Trump got 35%. In a two man race in Iowa Cruz trounced Trump. So thus far we know that Cruz wins wit Midwestern conservatives and Trump wins with Northeastern moderates and independents.
After SC we will know more but not enough. We will only know who is likely to emegete when I’d devolves into a two man race.
It wasn’t a two man race in Iowa. Cruz got 28% to 24% for Trump and received one more delegate than Trump and Rubio. In NH trump got three times more votes than Cruz who finished third barely ahead of Bush. Trump won every demographic.
If it devolves into a two man race, it will be Trump and someone other than Cruz.