RealClearPolitics follows a whole collection of polls which ask respondents whether the country is on the right or wrong track. Nine such have been released within the last 10 days.
Without exception the nine show most people believe the country to be on the wrong track. The right track percentages range from 19% to 25%. The wrong track percentages range from 67% to 72%. Some small percentage has, it would appear, no opinion.
In summary, somewhere between two-thirds and three-quarters of Americans believe the country is on the wrong track, headed in the wrong direction.
This illustrates the genius of Trump's slogan: Make America Great Again. People who believe the country is on the wrong track are receptive to Trump's appeal, and polls show most of us believe exactly that.
Meanwhile, in Philly the Democrats are trying to convince us the status quo is excellent, otherwise why would we want to continue it? The polls show they will have a tough time selling us that rosy scenario.