Sign it and ignore it. Case solved.
I agree. Given that the only candidate to be held to the pledge will be Donald Trump. The other candidates will be excused for whatever reason they come up with. There are many candidates running who do not expect to win but have the funding of well healed backers who want a platform to do what they can to destroy Trump. MAGA Trump supporters are on their own and know that the RINOS would prefer the communist democrat party over a Trump administration.