NORMAN SOLOMON – Like other Bernie Sanders delegates in Philadelphia a few weeks ago, I kept hearing about the crucial need to close ranks behind Hillary Clinton. “Unity” was the watchword. But Clinton has reaffirmed her unity with corporate America. Rhetoric aside, Clinton is showing her solidarity with the nemesis of the Sanders campaign — Wall Street. The trend continued last week with the announcement that Clinton has tapped former senator and Interior secretary Ken Salazar to chair her transition team.