Until now, Trump has made no effort to behave in an honest or reliable way. Technically, he didn’t have to. The US does not require any sworn statements from the men and women who run for president, nor does it have any enforceable code of behavior or constraints on the kind of rhetoric that can be used. Candidates may conduct themselves however they see fit.
The US has had the good fortune of choosing largely from among presidential aspirants who adhere to generally accepted norms. With Trump, it seems that fortune has turned into bankruptcy.
Many of Trump’s campaign promises – building a Mexico-funded wall on America’s southern border, bringing back lost manufacturing jobs, deporting millions of illegal immigrants – are patently impossible to implement.
A candidate whose promises are worthless.