Vice President Kamala Harris has all but neutralized Donald Trump ’s advantage on economic issues, fueling an upbeat showing for the Democrat in battleground states where she and the former president are locked in a tight race about 40 days until the election. A Bloomberg News/Morning Consult poll of swing states shows Harris now leading among likely voters by 7 percentage points in Nevada, 5 points in Pennsylvania, 3 points in Arizona, Michigan and Wisconsin, and 2 points in North Carolina....