Democratic pols from all around the Commonwealth began to line up to run for Treasurer in light of Tim Cahill’s announcement that he was leaving the Democratic Party. Democratic power broker Steve Grossman, who has chaired both the State and national Democratic Party, declared himself in the fight yesterday. Grossman will bring a large rolodex of state and national figures whom he has helped over the years, as well as a huge fundraising network. Others looking to run include State Senator Mark Montigny, State Rep. Tom Conroy, Sheriff Michael Bellotti, the Treasurer of Plymouth County Tom O’Brien, Suzanne Bump, Secretary of Labor to Governor Patrick, and James Rooney, the E.D. of the Massachusetts Convention Authority. I am sure that others will also emerge. The bridges are now burning behind Cahill, leaving no doubt about where he must now go. Add the Treasurer’s race to the Governor’s race, and you have a real exciting political year coming up.