Big scandal in Warsaw! Close associates of Trzaskowski took part in a serious corruption?

Sebastian Kaleta (PiS) stated that in Warsaw, during the word of Rafał Trzaskowski, there was a immense corruption scandal involving his close colleagues. According to the politician, if Trzaskowski had assumed the office of president of Poland, he would should be called upon to audition as a witness. Kaleta thus referred to the case of the erstwhile city secretary, Vladimir Karpiński.