Leonard Pitts: What’s going on with 42% of Republicans?

This is a column about 42 percent of Republicans.It is also a column about trust.A few days ago in Miami, the Knight Foundation, a philanthropic institution, convened a conference of journalists, tech persons, business persons and others to consider the state and future of journalism. Central to the gathering was a study conducted by Gallup and Knight measuring American attitudes toward news media.As medicine, it was castor oil.Among its findings: More Americans (43 percent) have a negative view