[Beautiful_Gracious_Skies]

Do you have a link to Texas party rule?

[E. Pluribus Unum]

South Dakota and Texas have sore loser laws that apply to presidential elections. I was wrong about there being three.

Let me google that for you:

https://ballotpedia.org/%22Sore_loser%22_laws_for_presidential_candidates

http://www.cnn.com/2015/08/13/politics/trump-third-party-run-barriers/

http://ivn.us/2016/01/04/parties-to-rely-on-sore-loser-laws-in-key-states-to-thwart-independent-trump-campaign/