During Obama's presidency (2009-2017), reports indicate 67 deaths in ICE custody, often linked to substandard medical care per sources like Human Rights Watch and Cato Institute.
The longest wrongfully detained U.S. citizen case involved Davino Watson, held for 1,273 days (over 3 years) before release in 2011.
Obama oversaw about 3 million formal deportations, compared to Trump's 1.5 million (2017-2021), per Migration Policy Institute data.
Obama was nicknamed "Deporter in Chief" by critics.