In given time period (8-14 September) the ruling party maintained the leader's position as the most popular party among Polish Internet users.
PiS was broadly commented in the context of the Smolensk catastrophe (peak on September 13).
Civic Platform was referred to i.e. due to new opinion poll for political parties.
Strong increase for both PiS and PO on 10 September after interview with former head of the Military Counterintelligence Service, Gen. Piotr Pytel for 'Gazeta Wyborcza'.