Boston based former McCain advisor now with Giuliani

Rob Gray, a Boston based Republican consultant, has signed on a a senior advisor for Rudy Giuliani's presidential campaign, the Globe has learned.

The news is interesting not only because once worked for Mitt Romney, but also because he held the same role with John McCain's campaign before it begun having financial problems in the summer.

Gray officially ended his relationship with McCain in September saying that since the McCain campaign was no longer running a national campaign it would be hard for him to contribute in a valuable way.

In 2006, Gray ran the unsuccessful gubernatorial campaign of then Lt. Governor Kerry Healey. In 2002 he was a media strategist and senior advisor on Romney's campaign for governor.