The next leader of the PQ will be elected by a vote of all its members. And it's easy to join; it costs only $5, and you can (sign up on the PQ's Web site (www.pq.org) or download a mail-in membership form.
Membership is open to anyone over the age of 16. You don't even have to be a Quebec resident, and you need to understand only enough French to fill out the membership form.
And there's no way the PQ could stop federalists from joining – or a federalist candidate from running for the leadership.
In fact, the last time the PQ elected its leader by a vote of its members, in 1985, some Pequistes worried about just such a possible infiltration of their party by federalists.
The more legitimate candidates there are to split the vote of the real sovereignists in the PQ, the more it becomes possible for a federalist candidate supported by a block of federalist "instant Pequistes" to slip up the middle.
If I put my name in the ring, can I count on your support?