The case in Oregon surely could be made out to be, and all the other states could be defined as harassment. Oregon could also be taken down the rought of infringement on his 1st amendment right by barring those he wishes to communicate with (though I hate suits based on the 1st amendment, since it is so subjective).
& the Republicans organized event so they were lining up in Oregon also so they could sign a petiton for Nader even though they were Bush supporters and had no intention of voting for Nader violating the spirit of the petiotn rule.
Both sides have their hands dirty on this one