Recent months have been tumultuous for U.S. democracy, in ways that are both novel and yet also connected to conflicts seen throughout the country’s past. MIT News spoke to several of the Institute’s political scientists and historians, and asked them: What must the U.S. do to sustain the health of its democracy? Melissa Nobles, the Kenan Sahin Dean of the School of Humanities, Arts, and Social Sciences, and professor of political science: Americans must collectively affirm that democracy is “the only game in town,” and that we are now a…