Must-read Nate Persily and Jon Cohen in WaPo:

If there had been any doubt, it has now become clear that this election campaign is about more than the selection of a president: The values that support American democracy are deteriorating. Large numbers of Americans across party lines have lost faith in their democracy, and many will not accept the legitimacy of this election.

Those were the stark findings from a survey we performed from Oct. 6 through Oct. 8 of more than 3,000 registered voters, fully 40 percent of whom say: “I have lost faith in American democracy.” Six percent indicate they’ve never had faith in the system. Overall, barely more than half — just 52 percent — say, “I have faith in American democracy.” (Most respondents completed the survey before the Oct. 7 release of the video in which Donald Trump bragged about groping women, but the responses of those surveyed afterward were indistinguishable from those who answered the day before.)

This cynicism is widely shared across the electorate, but significant partisan differences emerge on this question, as on so many others. More than 6 in 10 voters backing Democratic nominee Hillary Clinton express faith in U.S. democracy, compared with just over 4 in 10 of those backing her Republican rival. Most of Trump’s supporters say they’ve lost confidence in the basic mechanism of governance in the United States.