By Sarah K. Burris Dr. Rachel Kleinfeld, an expert on how democracies can improve at the Carnegie Endowment for International Peace, spoke to Washington Post columnist Greg Sargent about what Americans witnessed on Jan. 6, 2021, and what can be expected as the United States enters a new era of politics. The outlook is grim, Kleinfeld explained, noting that things will get much worse before they get better. “Americans need to realize that paramilitary groups could become a normal part of our political life,” she said of those like the Proud Boys and Oath Keepers, which have been part of the pro…