I think (since you asked) that one should not put so much credence in campaign promises in the first place.

Everyone knows that the conditions during the promises period are not the same as the conditions (i.e. global markets, oil markets, and Dem or Rep majority in Senate and House) after the Inauguration in 2013.

I think it's better to decide based on the assessment of TRUSTWORTHINESS and ACTIONS and FIDELITY of the person that we can read from the person's life, words and actions during his life leading up to this time.