In France the left coalition appears to have won the election defeating the fascist right. They did oit through cooperation "the left and centrist alliances cooperated by pulling scores of candidates from three-way races to build a unified anti-RN vote"
Hopefully the LPC, NDP, Green parties here will take a lesson from this
I don't know about the others, but the Greens seem allergic to "learning from experience".
@NorthernInvader
They won't nominate a candidate until their convention, which is the 11th through the 14th. Stein is one of the contenders, out of a field of about ten.