I get your point, but I don't believe Obama promised that before he was elected president. Besides, it's one thing to have a plan and change it later based on new information or a fluid situation (yes, you could still say it's breaking a promise), it's another thing entirely to have no realistic plan at all. Trump has no realistic plan for how to build the wall (much less pay for it). He has no plan for how to deport 11 million people. He has no concept of the damage a 35% trade tariff would inflict on our economy.
He hasn't thought out the details for any of these things. At least have some framework that isn't batshit crazy. For example, shutting down wire transfers back to Mexico or whatever he said he'd do until Mexico agreed to pay for the wall, doesn't stand up to any reasonable scrutiny.
If you read some of the other similar threads on this type of topic you'll quickly find that I'm definitely not one of those who "is so tied to the integrity of the game etc etc ..." but I simply feel that obvious CHEATING is so very different than the other types of "call in" calls.
Phil on keys to Baltusrol:
Says greens are running at 13.6 stimp. Seems high when PGA setup not typically known for 'very fast' greens.