Former state treasurer and 2014 candidate for governor Steve Grossman told the State House News Service that he would back Setti Warren’s run for governor, should the mayor decide to run. 

From the story:

“I will support Setti for governor 100 percent” if he decides to run, Grossman said. He said, “I like Setti. I believe in Setti. He has been an outstanding mayor. I think he did what he said he was going to do.”