From the NY Times:
Mr. Monserrate, who has been in office for less than a year, was found guilty of misdemeanor assault but acquitted of felony assault, which would have automatically removed him from the Senate.
While his fellow Democrats grappled with the possibility that Mr. Monserrate could face up to a year in jail — depriving them of enough votes to pass legislation — his constituents weighed what they would do should they be asked to vote for Mr. Monserrate next year.
Reaction to the verdict in Albany was heavily freighted with political calculations. Had Mr. Monserrate been convicted on felony charges, a special election probably would have resulted in another Democrat filling the office within a few weeks, sparing Senate Democrats further embarrassment. Indeed, one possible contender for the job, Councilman Eric N. Gioia, wasted little time issuing a statement on Thursday that called for Mr. Monserrate to be expelled from the Senate.
As a first-time offender, Mr. Monserrate could receive no jail time, but there is still the possibility that Senate Democrats would be negotiating budget cuts and other legislation with one of their members behind bars.