Thanks for the post.
After 1968 the convention rules were changed, making a contested convention less likely. On the other hand, the rules committee can change the rules the day before to give the other (known or unknown) picks an advantage, or eligibility they wouldn't have had otherwise.
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"History suggests brokered convention will doom Donald Trump"
http://www.washingtontimes.com/news/2016/mar/20/donald-trump-could-be-doomed-by-brokered-conventio/
Stefan speaks truth to the need!
Thank You for this post!