The full of Poland is supported by Rafał Trzaskowski. Why are city presidents breaking the law?

Aleksander Miszalski, president of Krakow, records the movie in his office, in which he urges the vote for president Rafał Trzaskowski. The pre-election campaign, of course for the same candidate, is led by the president of Gdańsk and Sopot, and the website - run for the money of Gdańsk - has become a tool for pre-election agitation. What does the electoral code say about specified practices?