When we launched the Niskanen Center in January 2015, we happily identified ourselves as libertarians. Sure, we were heterodox libertarians, but there are many schools of libertarianism beyond those promoted by Charles Koch’s political operations. The school we identified with was a left-libertarianism concerned with social justice (a libertarian perspective that I’ve defended in debates with more orthodox libertarians here and here). That worldview lacked an institutional voice in 2015. Our ambition was to create a space for it and, in so doing, redefine what it meant to be libertarian in the 21st century.