By Greg Sargent A month ago, with no members of the press present, Harry Reid gave a speech at the private wedding of his openly gay communications director, Jon Summers. According to a source who was present, Reid spoke powerfully in favor of equality for gay and lesbian Americans.I'm reporting this previously undisclosed episode because I'm not sure folks fully grasp how instrumental Reid was in getting don't ask don't tell repealed. Specifically, I don't think it's clearly understood what was so effective about his strategy, and why it was central to getting this done against all odds.-SNIP-Reid's efforts...