The viewpoint is at odds with studies showing it rarely occurs in U.S. elections.
His voters see their lives getting worse - and others' too
The defining question of 2016 is whether America needs to be restored to greatness.
Get more data
Dig into all the numbers in our polls, look at demographic groups and examine trends over time.
There may also be concern for Democrats in four key U.S. Senate races, a new poll finds.
After a volatile stretch, Clinton maintains her advantage heading into the debates.
Detailing the Post's 75,000-interview poll conducted with SurveyMonkey
Midwest battlegrounds offer Trump hope; white college grads remain his biggest weakness.
Disdain for the GOP nominee outweighs concern about the Democratic nominee.
New mosquito-transmitted infections in Florida have not raised national concerns
Democrats rally behind their candidate, while Republicans are slower to back Trump.
What types of voters to party's need to bring back into the fold
To some voters, some things are more important than presidential qualifications.
In a Gallup poll, black women were far more concerned about the stakes of this election than black men and white and Hispanic men and women.
Nearly three-quarters of Americans surveyed in border cities were against the plan.
Republicans and Democrats mistrust each other’s parties as the conventions begin.
A Washington Post-ABC News poll found voters dissatisfied with their choices.
A Washington Post-ABC News survey finds that twice as many people trust Hillary Clinton over Donald Trump to address race relations.
Hillary Clinton had hoped to put the issue to bed, but that doesn't appear likely anytime soon
