Neither NDP nor Grits have said what they will do to stop a Harper minority government from proroguing Parliament and preventing an anti-Conservative coalition.
NDP platform earns praise from May but Grits waste no time in denouncing Mulcair as "no friend of the environment," - pointing to his provincial record in Quebec.
Federal Court of Appeal dismisses Harper government's appeal against earlier ruling allowing the wearing of niqabs at citizenship ceremonies - but Tories set on taking battle to Supreme Court.
Voters must figure out whether NDP or Grits have best chance of kicking Harper out - but progressives may be hampered by Fair Elections Act restrictions - and possible voter apathy.