Ronald J. Daniels, President, Johns Hopkins University writes: That so many members of the public aren’t prepared to make sense of a constitutional emergency should come as no surprise. We’ve been failing at participating in the daily business of our democracy for years. Political tolerance hit a 20-year low in 2014 (a decline that shows no signs of abating), alarming numbers of young people struggle to distinguish reliable information from misinformation online, and the public’s faith in core democratic institutions — and fellow citizens — is eroding more by the day.