Unbound: The Conscience of a Republican Delegate
makes a powerful case that delegates to the Republican Party convention are not bound to vote for any particular candidate based on primary and caucus results, state party rules, or even state law. Co-authors Sean Parnell and Curly Haugland document nearly 240 instances at past conventions in which delegates invoked their right to vote their conscience.
"All that matters are rules, and the RNC's rules, according to Haugland - who has pored over them with painstaking attention to detail - offer a surprisingly large amount of leeway when it comes to how the 2,472 Republican delegates must act in Cleveland come July."
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Rolling Stone
, May 11, 2016
"Incredibly, Republicans at the highest level can't quite dismiss Haugland's arguments. Even last week, three days after Reince Priebus declared Trump the presumptive nominee, the party chairman couldn't quite bring himself to dismiss the possibility that the convention could nominate someone other than Trump."
Politico
, May 9, 2016