US Presidency
1848

We have now become an example for imitation to the whole world. The friends of freedom in every clime point with admiration to our institutions. Shall we, then, at the moment when the people of Europe are devoting all their energies in the attempt to assimilate their institutions to our own, peril all our blessings by despising the lessons of experience and refusing to tread in the footsteps which our fathers have trodden? And for what cause would we endanger our glorious Union? The Missouri compromise contains a prohibition of slavery throughout all that vast region extending twelve and a half degrees along the Pacific, from the parallel of 36 ° 30 ' to that of 49 °, and east from that ocean to and beyond the summit of the Rocky Mountains.