Barack Obama’s presidency has been defined by reliance on constitutionally dubious executive actions to implement policies opposed by the public or Congress.

But there’s one area where he has clear constitutional authority to act alone, and has, and that is the granting of clemency to criminals. Last Monday, the president pardoned 78 felons, and commuted the sentences of another 153, the most ever in one day. In total, Obama has issued 1,324 clemencies, including 1,176 commutations and 148 pardons.