When Obama took office in January 2009, the labor force participation rate was 65.7 percent. The following month, it reached an Obama-era high of 65.8 percent, and then it began its seven-year downward spiral, hitting 62.4 percent in September 2015, its lowest point since 1977.
Source: BLS: Employed Up 67,000 in June; Unemployed Up 347,000