Ron Paul's idea. He never signed a loyalty oath that might have possibly in any way been contrary to his principles. He did not support Romney, because that would have been contrary to his principles. In 2008 he publicly refused to support McCain, because that would have been contrary to his principles. And so on going as far back as you want to look.
The loyalty oath as you've described it many hundreds of time is going to be a deal breaker for many, many people here.
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