If a candidate wins both the disparate states of Iowa and New Hampshire, it seems they will win everything.”
Absolutely correct.
But we don’t know that strictly speaking from history....because it has (I think) never happened. (Except like Reagan in 84 or Bush in 04 but those are not true primaries).
In other words, if Trump wins IA and NH...we can say...WOW, that is unprecedented!
And it would be. And I think therefore right to predict that Trump would win every state thereafter.
Except Texas.
;-)