He will get the same amount of votes as the Rosie/Sheehan 3rd party crowd and they will cancel each other out
I believe the Green ticket this year is Stein/Honkala. It might very well garner more votes than the Constitution Party. Both are entirely irrelevant and, as you point out, likely cancel each other out. There are dead-enders and hardheads in each election cycle that sit our or waste their votes on 3rd party's. These people end up making no different, no one remembers their efforts and no one really cares.