When voters rate the economy and the president negatively just weeks before Election Day, the incumbent party is vulnerable, and that’s certainly the case in the latest Fox News survey.The economic landscape is stark. Six in 10 voters say the cost of living is their top economic worry, overshadowing government spending (15%), jobs and income inequality (7% each), tariffs (6%) and taxes (5%). Majorities rate the economy negatively (74%) and expect it to worsen next year (53%), while two-thirds are dissatisfied with how things are going in the country (66%). Few, 18%, say their family is better...