For example, he purposefully promised to return growth to 4% GDP, eliminate the national debt, make Mexico pay for a wall, when everyone knew those things were impossible. Making promises you know you can never keep is among the worst character traits. We are even leaving out the middle of the road stuff, like promising to repeal and replace Obamacare without the slightest knowledge of how that would be done.
Link: https://www.dailykos.com/stories/2019/3/17/1842022/-Donald-Trump-s-10-most-pathetically-predictable-broken-promises?