Ron Paul Delegates Not Allowed to Vote in Texas?

With such a groundswell of support for Ron Paul, why isn't the GOP embracing the most conservative congressman on the hill?

According to this video, seen on Capitol Annex, Paul delegates who arrived on time at an event in Texas were not allowed to vote.

Why wouldn't the GOP be interested in a candidate who could get a lot of Democrats to vote "this one time only" for a man who wants to get rid of Income Tax, legalize marijuana, and stop engaging in illegal and unconstitutional wars?

video by Robert Werden