Born in 1959, PhD in Logic.
Since 2002 to 2018 President of Wrocław City.
Piotr Krzystek (Szczecin)
Born in 1973, lawyer.
Since 2006 President of Szczecin City.
Mirosław Czekaj (Warszawa)
Born in 1963, PhD in Economics.
Since 2007 Treasurer of the Capital City of Warsaw.
Tadeusz Truskolaski (Białystok)
Born in 1958, PhD in Economics.
Since 2006 President of Białystok City.
Born in 1959, PhD in Economics.
Since 2010 President of Lublin City.