> but we should ask ourselves how democracy can function if candidates can just make things up during campaigns and do the complete opposite when they’re elected.

Education. Actually teaching people how to think critically about what they see and hear needs to start as soon as they get a phone in their hand, if not sooner. That education in critical thinking needs to come from family, school, social clubs and religious institutions. I don't think that'll ever happen in America though. Our economy depends on people not thinking critically.