They confiscated eight times more contraband cell phones and had a higher rate of assaults than comparable Bureau of Prisons institutions.

When I review Obama's presidency, with the major exception of his stance on LGBTQ issues and his endorsement of same-sex marriages, I don't find that he has stood up for the weak and vulnerable.

No one should be allowed to profit from putting more people behind bars -- whether they're inmates in jail or immigrants held in detention centers. In fact, I believe that private prisons shouldn't be allowed to exist at all, which is why I've introduced legislation to eliminate them.

Even with the best will in the world, most individual and institutional investors likely own positions in companies whose business practices undermine their philanthropic or personal values, simply because of the way these funds are put together.