"Trump and Cruz have said this. Are they lying?" Are they politicians? More seriously: Obama said a lot of things that didn't come to pass. Was he lying? Cl

"Trump and Cruz have said this. Are they lying?" Are they politicians? More seriously: Obama said a lot of things that didn't come to pass. Was he lying? Clinton has said a lot of things on the campaign trail: is she telling the truth on everything? How much is truth, and how much is pandering to the target audience? Are candidates from the different parties held by a different standard in this regard?