He has already become known as “Mr. Secretary,’’ with a diplomatic security team and a motorcade that shuts down highways. But John Forbes Kerry was officially still a United States senator Thursday, on a nostalgia tour through the state he represented in Washington for the better part of three decades.
Here was his old desk at the Middlesex district attorney’s office. Here were his old friends in Springfield. Here was a gathering of 200 Democratic luminaries and supporters at Faneuil Hall. And here he was in his Boston Senate office, reclining in an armchair for one last interview with the Globe as a senator, reflecting on his political journey, his determined comeback from the depths of his 2004 presidential defeat, and what he considers the sorry state of modern American politics.