There is a kind of ambiguity in politics and philosophy that Kant was trying to solve. The idea was to eliminate speculation outside the areas of possibility of experience [not possible experience]. But that does suggest an intersection with politics. We might not know what is true justice? But what ever true justice is, is certainly not outside the area of possibility of experience. The answer of Kant has seemed weak since the first review by a critique on Kant by Schultz, his closest ally. I do not see how any other answer besides Fries is possible, That knowledge is not just from sensible perception or from reason, rather from a sort of core knowledge of immediate nonintuitive knowledge. [Fries and Beneke are thought to be of the empirical Kant first. But if you look at the friesian.com you will see that Fries and Nelson were non-intuitive immediate knowledge first.] But as close to faith his seems, it is not faith--not a sort of knowledge based on extrasensory perception. Rather a source of knowledge that is not based on any kind of feeling or reason.
In the world of politics, the answers of philosophy have been incoherent. Ideas from Kant, do not appear to have brought any kind of clarity. It seems to me that there was a kind of flow from above of philosophy from the period starting from Kant to Hegel. But ideas about politics seem to have been focused into the founding fathers of the USA. So In fact Hegel saw the USA as the State of the Future.