From immigration to tax cuts to who won Florida, there is very little that Republicans and Democrats seem to agree on these days. But there may be one thing: the need to repair the nation’s criminal justice system.

It is a cause that has made for strange alliances, including the liberal Center for American Progress, the conservative Koch brothers, law enforcement groups, Kim Kardashian and now, President Trump, who on Wednesday endorsed a bill that would improve prison conditions and lower some sentences.

The view that punishment is too harsh, and rehabilitative measures too scarce, is broadly supported in public opinion polls, especially as crime has hovered at a 20-year low. That popular support has translated into political backing. “Out in the real world where people live, it’s not even controversial anymore,” said Mark Holden, who leads Koch Industries’ work on criminal justice issues.

Of course, not all the everyday people and the politicians who represent them arrived at this shared conclusion via the same path. The left is persuaded by vast racial disparities and the fact that the United States is a global outlier, with the world’s highest incarceration rate. Those on the right often point to unsustainable costs. The policy wonks arm themselves with reams of data on the system’s failure to lower recidivism or protect from wrongful conviction.