Stephen Maturen/Getty, Andrew Harnik/Getty, Tyler Le/BITrump and Harris offer vastly different economic policies.Harris' campaign focuses on middle and lower-income support while Trump on cutting taxes.But both candidates will have to face the reality of mounting US debt. Only a month ago, expectations of a second Trump administration were running high. More recently, the prediction betting market Predictit and a few national polling averages showed Vice President Kamala Harris in the lead.