The leader of Poland's populist nationalist Law and Justice party, Jaroslaw Kaczynski, and Prime Minister Mateusz Morawiecki hold their last major rally before Sunday's election, the outcome of which is highly uncertain. "We want to be part of an EU of sovereign countries" says Kaczynski. The ultra-nationalist Confederation party which is polling at no more than 10 percent, is seen as their most probable coalition partner. IMAGES AND SOUNDBITES