in general, most and least third party friendly states

[MaC]

not just my party, but all third parties in general.  I'd say Maine with the most friendly, possibly rank Minnesota or Vermont up there-I think those states with a third party governor or congressman have a better presidential showing.   Probably the most solid states that haven't had a disrupt would qualify as least friendly-maybe Oklahoma because of restrictive ballot access laws, or Utah because of the sheer solidity.

[MaC]

Maine and Alaska are probably the most friendly.
Didn't Conn also had a 3rd partygov? Or was that maine?

Maine had Rufus King in the 1990s as governor, who actually won over 50% in one election.  As for Connecticut, I don't know.

[MaC]

my bad.  Looks like Oklahoma is most unfriendly to third parties.  I hear Illinios has some draconian ballot access laws too--that is if you base it off the legal standard