Rafał Trzaskowski

Tensions erupted in Warsaw as protesting farmers clashed with police in a demonstration against EU climate policies and Ukrainian agricultural imports, threatening their livelihoods.

Fast forward to today and this weekend's congress of Civic Coalition is supposed to be accompanied by the news Tusk will take over leadership of the fledgling coalition that contains the party he once led to two consecutive electoral victories, serving as prime minister from 2007 to 2014.

This is a problem for the urban elites in Poland - they have a much more serious opponent than in other European countries.

- Dr Jaroslaw Flis

Mayors of Pact of Free Cities: (from L to R) Zdenek Hrib, Rafal Trzaskowski and Gergely Karacsony. Photo: Trzaskowski Facebook page