Excerpt:
Pressure is quietly mounting on John McCain to support the idea of a nuclear-free world. It is being pushed primarily by former secretaries of state, and Senator McCain advisers, Henry Kissinger and George Shultz.
They are joined in their efforts by a bipartisan slate of eminent national security figures, including a former secretary of defense during the Clinton administration, William Perry, and a Democratic Party heavyweight, Sam Nunn. Hillary Clinton and Barack Obama have already signaled their support for the effort.