America's jobs engine sputtered in June — and took the case for a rate hike with it. The economy added just 57,000 new positions, barely half the 110,000 economists expected, while prior months were revised down by a combined 74,000 jobs. The unemployment rate ticked lower to 4.2% , but only because the labor force participation rate dropped by 0.3 percentage points — more people stopped looking, which isn't the flex it sounds like. As Glassdoor's chief...