An editorial (available here) in a recent edition of the Times Beacon Record, a group of Long Island newspapers, lays it out beautifully. Brian Foley isn't a bad guy, but he isn't the kind of tenacious fighter that the district -- and all New Yorkers -- need in the state Senate.
In addition, it should be noted once again that Foley's last-minute entry into the race caused a three-way primary, whereas if he had either gotten in last year or stayed out completely, we'd have a nominee right now. It seems that Doug Forand and the other powermongers in Albany haven't been paying attention to the situation on the ground in Islip/Brookhaven.