Picking up on what he said, here are his follow up observations:

As we noted last summer in Civil unrest, in a polarized society trust in institutions is vulnerable. We explained how the polarization in the US is a process that has been decades in the making. No matter who had won the elections, the turbulence in US politics and society was not likely to pass. Protest, riot, insurrection, sedition, coup, … all of these terms have been mentioned on television. The ever increasing polarization of US politics and society has reached a level that poses a serious threat to the stability of the country.

Adding some more detail to this ominously view, we go back to the conclusion of his July note, which predicted that what is taking place in the US - and really everywhere - is "Only the Beginning"

The question is where does the US go from here? If President Trump is re-elected, he will be at the wheel for four more years, but this time without any restrictions imposed by concerns about re-election. If Biden takes the White House, federal policies will shift to the left again (for more details see the May Monthly Outlook). But will this lead to renewed trust in institutions? Perhaps for some on the left, but what about the rest? In a heavily polarized country, there is little common ground. Meanwhile, if right-wing populism is expelled from the White House, this does not mean it is going to disappear. It will only reorganize. Hopefully in the political arena, but we could also see another boost to violent right-wing extremism. In fact, right-wing attacks and plots account for the majority of terrorist incidents in the US since the mid-1990s. In the last six years, this has grown substantially (Figure 4). So no matter who wins the elections, the turbulence in US politics and society is not likely to pass. In fact, what we are seeing now may be only the beginning.