You can't proclaim a new party a couple of months before a General Election and hope to have any impact.
But this seems to be what the Socialist Party, Bob Crow and the CPB(?) seem to be doing.
I think, obviously, that the left should support the Green Party and strong left candidates outside the Green Party with a chance of victory.
'Trades Union & Socialist Coalition' is likely to pick up at best a few thousand votes here and there.
Instead I think they should put their energy into supporting Dave Nellist who might do a little better and to support Caroline Lucas, Salma Yaqoob and Dai Davies.
N02EU had a fairly limited impact in the European Elections, I don't think this will have a bigger impact, its about building up support over a number of years in constituencies through community campaigning.
Proclaiming a party national will not cut it, I suspect.
While left analysis is vital, I largely despair of left strategy in the UK. Very different in Latin America, may be the Brit left should see if they can learn anything from Morales, Chavez and co.