This question has come up several times before, and those relatively new to Libcom may find it useful to go over some of the previous threads from Summer 2006. I found these two:
Should communists be union reps?
http://libcom.org/node/7983
As Alf said back then,
Because whatever your good intentions may be, you end up selling the union line to the 'members' and acting as a barrier to workers organising themselves. This may not be apparent in times of apathy when the 'activists' are the only ones involved in keeping the union going, but it will become clear when the struggle breaks out of the daily routine and workers dare to take things into their own hands. Then you're faced with the choice go with the union and oppose the struggle, which will necessarily break the union rules, or give up being a union rep and go with the workers. So why put yourself in that position in the first place?
Unions and Communists
http://libcom.org/forums/thought/unions-and-communists
This thread had a very good presentation and the discussion was at a high level. Definately worth returning to at some point. Why not here?
B.



Can comment on articles and discussions
There's a differance in having a dual cardist strategy and "working through", shouldn't it be more a matter of "working out", as in that the trade union form must be broken with.