1. A year ago today, the world became acquainted with the now-infamous "Time for some traffic problems in Fort Lee" email, sent by a top Christie aide to a top official at the Port Authority of New York and New Jersey.  The email spawned criminal investigations, federal probes, a legislative inquiry...and at least one Bruce Springsteen song:  Emails Tie Top Christie Aide to GW Bridge Scandal.

2. The Christie administration went into full damage control with what would become familiar themes: sarcasm, contrition, and outrage: Three Stages of Christie's Crisis Management

3. It turned out that Christie officials weren't just snagging commuters. The Port Authority's New Jersey staff had been systematically helping themselves to the agency's billions to fund New Jersey projects, win union and political endorsements, and solve budget problems:  How Christie's Men Turned the Port Authority into a Political Piggy Bank.

4. And then another shoe dropped: It wasn't just Fort Lee.  Hoboken's Mayor, Dawn Zimmer, says she was denied Sandy aid for not endorsing Christie: Mayor Alleges Chris Christie Used Sandy Aid As A Political Pawn.

5. One man emerged at the center of both scandals: David Samson.  A WNYC investigation found Christie's chairman of the Port Authority saw his private business soar while running a bi-state agency bigger than most states: Under Christie, Business Booms for Port Authority Chief.

6. Samson (and his well-connected law firm) was working both sides of various business deals with the Port Authority: The Power Broker: How Christie's Port Point Man Plays All Sides of Transit Deals. 

7. But Christie's legal team, headed by Randy Mastro, never interviewed Samson -- or anyone who worked at the Port Authority.  Instead, the team employed this strategy to "exonerate" the Governor: A Jilted Lover, a 'Crazy' Man and Diane Sawyer: What Christie Crisis Management Looks Like.

8. Even so, two days after the report's release, Samson became the third top official at the Port Authority to lose his job: Fifth Christie Ally Resigns.

9. And in thousands of pages of footnotes and exhibits, the Governor's re-election strategy was plain to see: How Christie's Used Government Employees to Win Endorsements.

10. Meantime, a WNYC/NJ Spotlight investigation found yes, indeed, the Christie administration doled out Sandy aid in uneven ways: Fuzzy Math: How Christie Divvied Up Sandy Mitigation Money.

11. The costs mounted to pay for Bridgegate. There was the team working to "clear" Christie, the legislative investigation and the legal bills for many of the Governor's staff: Bridgegate Legal Bills are $4.4 Million...and Counting. (They are now approaching $10 million.)

12. While the report  strenuously claimed there was no evidence that Christie ordered the lane closures, there was plenty of evidence that his senior staff worked overtime to tamp down interest in the scandal: Did Christie Aides Cover Up Bridgegate? 

13. Saying they were turning over a new leaf at the Port Authority, the Governors Name a Panel of Insiders to 'Reform' Port Authority.  That panel released two reports, one late in the afternoon before the July 4th holiday weekend, and one the Saturday night of Christmas weekend.  The latter report was accompanied by a bi-state veto of Port Authority reform bills that had been passed unanimously by duly elected legislative representatives in both houses of both the governments of New York and New Jersey. 

14. Meantime, a parade of witnesses continued to come before the New Jersey legislative committee investigating the lane closures.  They seemed to be sticking to the mantra: Christie Aide: I Didn't Ask, I Didn't Take Notes, I Don't Recall.

15. Until one of them, Christie's incoming Chief of Staff, Regina Egea, let on that she had deleted a text she sent to the Governor: The Mystery of Christie's Deleted Bridgegate Text. 

16. A year after the lane closures, we boiled it down with an audio montage: Hear A Bridgegate Recap in Two Minutes.

17. But the story kept going.  New documents showed a greater involvement than previously known by David Samson with top Christie administration officials: Exclusive: Logs Show Dozens of Calls Between Former Port Chief & Top Christie Aides.

18. A report released in December contained more damaging news: 12 text messages between Christie and his top aide, Regina Egea, had been scubbed from both of their phones: Christie, Aide Texted as Bridgegate Cover Story Unraveled.

The federal investigation by the US Attorney in New Jersey, Paul Fishman, is ongoing, as are probes by the Manhattan D.A. and Securities and Exchange Commission over the use of Port Authority funds for repairing the Pulaski skyway in New Jersey. (The funds were diverted to the skyway after Christie cancelled a trans-Hudson transit tunnel, known as the ARC tunnel.)