The same method works there too.
Most feel they need to vote for a “front-runner” else their vote is wasted.
They are very conveniently informed who the front runner is.
I recall quite well how, for example, Bill Clinton was endlessly, front-page called the frontrunner for the Democratic nomination for '92 well before there was a single primary election. The media said he was and made him so.
Similarly, why did McCain and Obama win their nominations?
I think most McCain voters voted for him because the wisdom they were absorbing from the atmosphere had it that only he, among Republicans, could win. Any other vote and why, they’d be wasting their vote.
As for Obama, no, it was believed also that Hillary could win, but I am sure that just as with my Stalinist Party / Leninist Party example, either was fully acceptable.
How is this done? Besides achieving where people absorb the desired things from the atmosphere.
The voting system. It is thoroughly known that refusing to accept anything from voters except “yes” on a single name is the means least capable, among voting methods, of weighing and responding to wishes of voters.
But it has the vast virtue over, for example, instant-runoff of making voters feel that they are “wasting their vote” with any candidate but the ones that the atmosphere says are the only potential winners.
True for primary elections also.
It’s not as if McCain won 51% or more of the vote when there was any substantial field. We don’t know he could have won an instant run-off. Actually I think it’s quite questionable that more than perhaps 40% of Republican primary voters found McCain acceptable. In contrast to McCain, some other candidate who might have received only 10% – with votes of those preferring candidates similar to home being split among five differing candidates and thus his being compared with the whole field, not just McCain, and further being greatly penalized by people not wanting to “waste their vote” as they were given reason to believe he could not win – this candidate might have been preferred to McCain by say a 60-40 margin.
The voting system, however, assures that does not happen.
The “we will accept nothing but ‘yes’ for one name” system pretty much guarantees that someone like, say, Duncan Hunter cannot win. Even though I would not be at all surprised if, at the end of the day, more Republican primary voters would have wanted Hunter than McCain. Just as an example.